[TASK] Rename ext:lowlevel/View to ext:lowlevel/Controller

The two "view" classes are clearly controllers and are
renamed with this patch accordingly.

Change-Id: Ic1cdc405ae24b87aa6224cda79b7226ce5eeec64
Resolves: #82744
Releases: master
Reviewed-on: https://review.typo3.org/54375


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>