create PostController in admin zone

Author: enotRishinn

controllers/admin/PostController.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace app\controller\admin;
+
+use yii\web\Controller;
+
+class PostController extends Controller {
+
+  public function actionIndex() {
+    return $this->render('index');
+  }
+}