Function tplAutoFillModules

This function fills in modules automatically using this logic:

If the container mode is fixed, insert the named module (if exists)
If the container mode is mandatory, insert the "default" module (if exists)

Package: Core\Backend
Copyright: four for business AG <www.4fb.de>
License: http://www.contenido.org/license/LIZENZ.txt
Author: Olaf Niemann
Author: Jan Lengowski
Author: Munkh-Ulzii Balidar
Todo: The default module is only inserted in mandatory mode if the container is empty. We need a better logic for handling "changes".
Located at includes/functions.tpl.php

Parameters summary
`integer`	`$idtpl`

Return value summary
`boolean`