Moved language files in saltedpasswords to Resources/Private/Language

Resolves: #68273
Releases: master
Change-Id: I73eaa24224eb2bccbb6e53272b4a5dc64e30bdba
Reviewed-on: http://review.typo3.org/41557


Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>