added license and readme

Author: roncodes

LICENSE

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+MIT License
+
+Copyright (c) 2023 Fleetbase Pte Ltd
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README

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+# FLB CLI Tool
+
+FLB (Fleetbase) is a command-line interface tool designed for managing Fleetbase Extensions. It simplifies the process of publishing and managing both npm and PHP Composer packages, particularly for Fleetbase extensions.
+
+## Features
+
+- Publish npm and PHP Composer packages to a specified registry.
+- Unpublish packages from the registry.
+- Automatically convert `composer.json` to `package.json` for PHP packages.
+- Flexible registry configuration.
+
+## Installation
+
+To install FLB, run the following command:
+
+^bash
+npm install -g flb
+^
+
+## Usage
+
+### Publishing a Package
+
+To publish a package, navigate to the package directory and run:
+
+```bash
+flb publish [path]
+```
+
+- `[path]`: The path to the package directory. Defaults to the current directory.
+
+For PHP packages, `flb` will automatically convert `composer.json` to `package.json` before publishing.
+
+### Unpublishing a Package
+
+To unpublish a package, use:
+
+```bash
+flb unpublish [packageName]
+```
+
+- `[packageName]`: The name of the package to unpublish. If not provided, FLB will attempt to determine the package name from the current directory.
+
+### Setting a Custom Registry
+
+To specify a custom registry for publishing and unpublishing, use the `-r` or `--registry` option:
+
+```bash
+flb publish -r http://my-registry.com
+flb unpublish -r http://my-registry.com
+```
+
+## Configuration
+
+FLB can be configured via command-line options. The most common options include:
+
+- `-r, --registry [url]`: Specify a custom registry URL.
+
+## Contributing
+
+Contributions to FLB are welcome. Please ensure that your code adheres to the project's coding standards and include tests for new features or bug fixes.
+
+## License
+
+FLB is [MIT licensed](LICENSE).