[TASK] Move the language files

Move all language files to Resources/Private/Language

Change-Id: I6f3f875ec766476913fc9e9eedff11daf001184c
Resolves: #59715
Reviewed-on: http://review.typo3.org/30925
Reviewed-by: Ivan Dharma Kartolo <ivan.kartolo@gmail.com>
Tested-by: Ivan Dharma Kartolo <ivan.kartolo@gmail.com>