Migrate the getPagePermsClause() method to Doctrine and add Tests.

Change-Id: Ib8ac3dd557ecd011f8a37c9f4a7f86a861ded4a9
Resolves: #75556
Releases: master
Reviewed-on: https://review.typo3.org/48446


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>