added views and Authclients

lib/User/AuthClient/Facebook.php

@@ -0,0 +1,25 @@
+<?php
+namespace Da\User\AuthClient;
+
+use Da\User\Contracts\AuthClientInterface;
+
+class Facebook extends \yii\authclient\clients\Facebook implements AuthClientInterface
+{
+    /**
+     * @inheritdoc
+     */
+    public function getEmail()
+    {
+        return isset($this->getUserAttributes()['email'])
+            ? $this->getUserAttributes()['email']
+            : null;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getUsername()
+    {
+        return;
+    }
+}