finish acceptance tests and refactor IotaCodesClient to service container

app/Libraries/IotaCodes/Airport.php

@@ -3,17 +3,33 @@ namespace App\Libraries\IotaCodes;
 
 class Airport
 {
-    
+    /**
+     * @var string
+     */
     public $name;
     
+    /**
+     * @var string
+     */
     public $code;
     
+    /**
+     * Airport constructor.
+     * @param $name
+     * @param $code
+     */
     protected function __construct($name, $code)
     {
         $this->name = $name;
         $this->code = $code;
     }
     
+    /**
+     * Airport factory method
+     * @param $name
+     * @param $code
+     * @return \App\Libraries\IotaCodes\Airport
+     */
     public static function create($name, $code)
     {
         return new self($name, $code);