The class is called by two ajax routes and is therefore to be named,
placed and handled as the controller that it is.

Change-Id: I5106f5310041d3f0a993c2bf7ebe03ac51454cad
Resolves: #86142
Releases: master
Reviewed-on: https://review.typo3.org/58183


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Guido Schmechel <guido.schmechel@brandung.de>
Tested-by: Guido Schmechel <guido.schmechel@brandung.de>
Reviewed-by: Mathias Brodala <mbrodala@pagemachine.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>