feat: add package method

This change added a Package class based on App class
Package class have `packageDetails` method
`packageDetails` method accepts three argument like `app()->appDetails`

Author: Ernest E

src/Syntax/SteamApi/Client.php

@@ -17,6 +17,7 @@
  * @method \Syntax\SteamApi\Steam\User       user($steamId)
  * @method \Syntax\SteamApi\Steam\User\Stats userStats($steamId)
  * @method \Syntax\SteamApi\Steam\App        app()
+ * @method \Syntax\Steamapi\Steam\Package    package()
  * @method \Syntax\SteamApi\Steam\Group      group()
  * @method \Syntax\SteamApi\Steam\Item       item($appId)
  */

src/Syntax/SteamApi/Containers/Package.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Syntax\SteamApi\Containers;
+
+class Package extends BaseContainer
+{
+    public $id;
+    public $name;
+    public $page_image;
+    public $header;
+    public $small_logo;
+    public $apps;
+    public $page_content;
+    public $price;
+    public $platforms;
+    public $release;
+
+    public function __construct($package, $id)
+    {
+        $this->id = (int) $id;
+        $this->name = $package->name;
+        $this->apps = $package->apps;
+        $this->page_content = $this->checkIssetField($package, 'page_content', 'none');
+        $this->header = $this->checkIssetField($package, 'header_image', 'none');
+        $this->small_logo = $this->checkIssetField($package, 'small_logo', 'none');
+        $this->page_image = $this->checkIssetField($package, 'page_image', 'none');
+        $this->price = $this->formatPriceObject($package, 'price');
+        $this->platforms = $package->platforms;
+        $this->controller = $package->controller;
+        $this->release = $package->release_date;
+    }
+}

src/Syntax/SteamApi/Steam/Package.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace Syntax\SteamApi\Steam;
+
+use Syntax\SteamApi\Client;
+use NukaCode\Database\Collection;
+use Syntax\SteamApi\Containers\Package as PackageContainer;
+
+class Package extends Client
+{
+    public function __construct()
+    {
+        parent::__construct();
+        $this->url = 'http://store.steampowered.com/';
+        $this->interface = 'api';
+    }
+
+    public function packageDetails($packIds, $cc = null, $language = null)
+    {
+        // Set up the api details
+        $this->method = 'packagedetails';
+        $this->version = null;
+        // Set up the arguments
+        $arguments = [
+            'packageids' => $packIds,
+            'cc'         => $cc,
+            'l'          => $language,
+        ];
+        // Get the client
+        $client = $this->setUpClient($arguments);
+        $packs = $this->convertToObjects($client, $packIds);
+
+        return $packs;
+    }
+
+    protected function convertToObjects($package, $packIds)
+    {
+        $convertedPacks = $this->convertPacks($package, $packIds);
+        $package = $this->sortObjects($convertedPacks);
+
+        return $package;
+    }
+
+    /**
+     * @param $packs
+     *
+     * @return Collection
+     */
+    protected function convertPacks($packages, $packIds)
+    {
+        $convertedPacks = new Collection();
+        foreach ($packages as $package) {
+            if (isset($package->data)) {
+                $convertedPacks->add(new PackageContainer($package->data, $packIds));
+            }
+        }
+
+        return $convertedPacks;
+    }
+}