[BUGFIX] EM interface for renderHook is missing

Seems this file was not added with latest merge, add it

Change-Id: I7a6cf6edc6ccdb8e39f38c702fedf4dd1c766c8b
Resolves: #M17865
Reviewed-on: http://review.typo3.org/1041


Reviewed-by: Christian Mueller <christian@kitsunet.de>
Reviewed-by: Steffen Kamper <info@sk-typo3.de>
Tested-by: Steffen Kamper <info@sk-typo3.de>

typo3/sysext/em/interfaces/interface.tx_em_renderhook.php

+<?php
+/***************************************************************
+ *  Copyright notice
+ *
+ *  (c) 2010 Steffen Kamper <steffen@typo3.org>
+ *  All rights reserved
+ *
+ *  This script is part of the TYPO3 project. The TYPO3 project is
+ *  free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  The GNU General Public License can be found at
+ *  http://www.gnu.org/copyleft/gpl.html.
+ *  A copy is found in the textfile GPL.txt and important notices to the license
+ *  from the author is found in LICENSE.txt distributed with these scripts.
+ *
+ *
+ *  This script is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  This copyright notice MUST APPEAR in all copies of the script!
+ ***************************************************************/
+
+interface tx_em_renderHook {
+
+	/**
+	 * @abstract
+	 * @param  t3lib_pageRenderer $pageRenderer
+	 * @param  array $settings
+	 * @param  string $content
+	 * @return void
+	 */
+	public function render($pageRenderer, &$settings, &$content);
+}
\ No newline at end of file