[TASK] Adds Additionalconfiguration sample file

* Adds trusted hosts pattern

data/typo3/html/typo3conf/AdditionalConfiguration.sample.php

+<?php
+/**
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+$GLOBALS['TYPO3_CONF_VARS']['SYS']['trustedHostsPattern'] = 'ter\.typo3\.127\.0\.0\.1\.xip\.io';
\ No newline at end of file