[feature/oauth] Create OAuth service classes

PHPBB3-11673

phpBB/phpbb/auth/provider/oauth/service/base.php

@@ -0,0 +1,32 @@
+<?php
+/**
+*
+* @package auth
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* Bitly OAuth service
+*
+* @package auth
+*/
+abstract class phpbb_auth_provider_oauth_service_base implements phpbb_auth_provider_oauth_service_interface
+{
+	/**
+	* {@inheritdoc}
+	*/
+	public function get_auth_scope()
+	{
+		return array();
+	}
+}