Multiple issues fixed in this commit

- Refactor 'Collections' Namespace to 'Support' (#10)
- Move all service-related tasks to CommonPHP/ServiceManager library (#9, #8, #4)
- Implement and pass tests (#6)
- Create CONTRIBUTING.md (#5)
- Close #3 and #1 as they are now applicable to ServiceManager library
- Modified version to 0.1 to create Packagist package for composer

Author: tlmcclatchey

CODE_OF_CONDUCT.md

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+# Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, sex characteristics, gender identity and expression, level of experience, education, socio-economic status, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at timothy@commonphp.org. All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.4, available at http://contributor-covenant.org/version/1/4.

CONTRIBUTING.md

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+# Contributing to CommonPHP\DependencyInjection
+
+First of all, thank you for your interest in contributing to CommonPHP\DependencyInjection! This project welcomes any kind of contribution, whether it's reporting bugs, suggesting improvements, or opening pull requests.
+
+Here are some guidelines on how to contribute.
+
+## Reporting Bugs
+
+1. Ensure the bug was not already reported by searching on GitHub under [Issues](https://github.com/commonphp/di/issues).
+
+2. If you're unable to find an open issue addressing the problem, [open a new one](https://github.com/commonphp/di/issues/new). Be sure to include a **title and clear description**, as much relevant information as possible, and a **code sample** or an **executable test case** demonstrating the expected behavior that is not occurring.
+
+## Suggesting Enhancements
+
+1. First, read the [documentation](https://github.com/commonphp/di/wiki) carefully to make sure the behavior you are suggesting doesn't already exist.
+
+2. Check the [issues list](https://github.com/commonphp/di/issues) on GitHub to see if there has been any discussion on the matter.
+
+3. If it hasn't been suggested before, you can [create a new issue](https://github.com/commonphp/di/issues/new). Provide as much context as you can about why the feature would be useful.
+
+## Pull Requests
+
+1. Fork the project on GitHub.
+
+2. Clone the forked project to your machine.
+
+3. Create a new branch from `master` for your changes.
+
+4. Make your changes in your new branch. If you're adding a feature or fixing a bug, please add tests!
+
+5. Push your changes to your fork.
+
+6. Submit a pull request to the `master` branch of the CommonPHP\DependencyInjection repository.
+
+7. Be sure to include a description of your changes.
+
+8. The maintainers of the project will review your pull request as soon as possible.
+
+## Code of Conduct
+
+We enforce a Code of Conduct for all maintainers and contributors of this project. Please read and follow our [Code of Conduct](CODE_OF_CONDUCT.md).
+
+Again, thank you for your contribution, and we look forward to your suggestions, bug reports, and pull requests!

examples/call.php

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+<?php
+
+require_once 'vendor/autoload.php';
+
+use CommonPHP\DependencyInjection\DependencyInjector;
+
+function exampleFunction(string $message)
+{
+    echo "The message is: " . $message;
+}
+
+$injector = new DependencyInjector();
+
+try {
+    // Call the function 'exampleFunction' with 'Hello, world!' as the parameter
+    $injector->call('exampleFunction', ['message' => 'Hello, world!']);
+} catch (Exception $e) {
+    // Handle exceptions
+    echo "An error occurred: " . $e->getMessage();
+}

examples/instantiate.php

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+<?php
+
+require_once 'vendor/autoload.php';
+
+use CommonPHP\DependencyInjection\DependencyInjector;
+
+class ExampleClass
+{
+    public function __construct(private string $property)
+    {
+    }
+
+    public function getProperty(): string
+    {
+        return $this->property;
+    }
+}
+
+$injector = new DependencyInjector();
+
+try {
+    // Instantiate ExampleClass with a provided constructor parameter
+    $instance = $injector->instantiate(ExampleClass::class, ['property' => 'exampleValue']);
+
+    // Use the instantiated object
+    echo $instance->getProperty();  // Outputs: exampleValue
+} catch (Exception $e) {
+    // Handle exceptions
+    echo "An error occurred: " . $e->getMessage();
+}

examples/invoke.php

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+<?php
+
+require_once 'vendor/autoload.php';
+
+use CommonPHP\DependencyInjection\DependencyInjector;
+
+class ExampleClass
+{
+    private string $property;
+
+    public function __construct()
+    {
+        $this->property = 'Initial value';
+    }
+
+    public function setProperty(string $newValue): void
+    {
+        $this->property = $newValue;
+    }
+
+    public function getProperty(): string
+    {
+        return $this->property;
+    }
+}
+
+$injector = new DependencyInjector();
+
+try {
+    // Instantiate ExampleClass without any constructor parameters
+    $instance = $injector->instantiate(ExampleClass::class, []);
+
+    // Invoke setProperty method on the instantiated object
+    $injector->invoke($instance, 'setProperty', ['newValue' => 'Updated value']);
+
+    // Use the updated object
+    echo $instance->getProperty();  // Outputs: Updated value
+} catch (Exception $e) {
+    // Handle exceptions
+    echo "An error occurred: " . $e->getMessage();
+}

examples/lookup-hooks.php

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+<?php
+
+require_once 'vendor/autoload.php';
+
+use CommonPHP\DependencyInjection\DependencyInjector;
+use CommonPHP\DependencyInjection\Support\ValueFinder;
+
+class ExampleClass
+{
+    public function __construct(public string $message)
+    {
+    }
+}
+
+$injector = new DependencyInjector();
+
+// Add a custom lookup hook to the ValueFinder
+$injector->valueFinder->onLookup(function (string $name, string $typeName, bool &$found): mixed {
+    if ($name === 'message' && $typeName === 'string') {
+        $found = true;
+        return 'Hello from custom lookup hook!';
+    }
+
+    return null;
+});
+
+try {
+    // Create a new instance of ExampleClass using the custom lookup hook
+    $instance = $injector->instantiate(ExampleClass::class, []);
+} catch (Exception $e) {
+    // Handle exceptions
+    echo "An error occurred: " . $e->getMessage();
+}
+
+echo $instance->message;  // Outputs: "Hello from custom lookup hook!"

examples/populate.php

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+<?php
+
+require_once 'vendor/autoload.php';
+
+use CommonPHP\DependencyInjection\DependencyInjector;
+
+class ExampleClass
+{
+    public string $message;
+}
+
+$injector = new DependencyInjector();
+
+// Create a new instance of ExampleClass
+$instance = new ExampleClass();
+
+try {
+    // Populate the properties of the instance
+    $injector->populate($instance, ['message' => 'Hello, world!']);
+} catch (Exception $e) {
+    // Handle exceptions
+    echo "An error occurred: " . $e->getMessage();
+}
+
+echo $instance->message;  // Outputs: "Hello, world!"