[feature/extension-manager] Extension Manager & Finder

Extensions RFC: http://area51.phpbb.com/phpBB/viewtopic.php?f=84&t=41499
Ticket: http://tracker.phpbb.com/browse/PHPBB3-10323

PHPBB3-10323

phpBB/includes/extension/interface.php

@@ -0,0 +1,27 @@
+<?php
+/**
+*
+* @package extension
+* @copyright (c) 2011 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+*
+* @package extension
+*/
+interface phpbb_extension_interface
+{
+	public function enable();
+	public function disable();
+	public function purge();
+}