Add BackendController/AccesControl

Add the BackendController for all the backend controllers.
Add AccesControl

backend/controllers/CustomerController.php

@@ -15,19 +15,8 @@ use backend\models\CustomerUpdate;
 /**
  * CustomerController implements the CRUD actions for Customer model.
  */
-class CustomerController extends Controller
+class CustomerController extends \backend\controllers\BackendController
 {
-    public function behaviors()
-    {
-        return [
-            'verbs' => [
-                'class' => VerbFilter::className(),
-                'actions' => [
-                    'delete' => ['post'],
-                ],
-            ],
-        ];
-    }
 
     /**
      * Lists all Customer models.
@@ -105,7 +94,6 @@ class CustomerController extends Controller
      * If deletion is successful, the browser will be redirected to the 'index' page.
      * @param integer $id
      * @return mixed
-     */
     public function actionDelete($id)
     {
         $this->findModel($id)->delete();
@@ -113,6 +101,7 @@ class CustomerController extends Controller
         return $this->redirect(['index']);
     }
 
+     */
     /**
      * Finds the Customer model based on its primary key value.
      * If the model is not found, a 404 HTTP exception will be thrown.