Add tr.xml, the base for turkish translations

Translated by: Nilgün Belma Bugüner <nilgun belgeler.org>
Reviewed by: Orhan Berent <berent belgeler.org>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@634614 13f79535-47bb-0310-9956-ffa450edef68