Rename Plugin to AuthenticationPlugin

Author: ADmad

src/Plugin.php src/AuthenticationPlugin.phpsrc/Plugin.php renamed to src/AuthenticationPlugin.php

@@ -20,7 +20,7 @@
 /**
  * Plugin class for CakePHP.
  */
-class Plugin extends BasePlugin
+class AuthenticationPlugin extends BasePlugin
 {
     /**
      * Do bootstrapping or not

tests/bootstrap.php

@@ -14,7 +14,7 @@
  * @license       https://www.opensource.org/licenses/mit-license.php MIT License
  */
 
-use Authentication\Plugin as AuthenticationPlugin;
+use Authentication\AuthenticationPlugin;
 use Cake\Cache\Cache;
 use Cake\Core\Configure;
 use Cake\Core\Plugin;