update models + added social network account services

lib/User/Contracts/AuthClientInterface.php

@@ -0,0 +1,17 @@
+<?php
+namespace Da\User\Contracts;
+
+use yii\authclient\ClientInterface;
+
+interface AuthClientInterface extends ClientInterface
+{
+    /**
+     * @return string|null email
+     */
+    public function getEmail();
+
+    /**
+     * @return string|null username
+     */
+    public function getUserName();
+}

lib/User/Contracts/ServiceInterface.php

@@ -1,18 +1,10 @@
 <?php
 namespace Da\User\Contracts;
 
-/**
- *
- * ServiceInterface.php
- *
- * Date: 4/12/16
- * Time: 2:56
- * @author Antonio Ramirez <hola@2amigos.us>
- */
 interface ServiceInterface
 {
     /**
-     * @return void
+     * @return bool
      */
     public function run();
 }