[FEATURE] Compare backend usergroups

Integrators are now able to compare individual backend usergroups.

Backend usergroups are used to split permissions into smaller parts which
can be later assigned to a backend user.
This feature makes it possible to compare the defined permissions including
the ones inherited from sub groups.

Resolves: #90826
Releases: master
Change-Id: Ic2306be7091c0001c293bcc8622c4d6ea16776ea
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63890


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Josef Glatz <josefglatz@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Josef Glatz <josefglatz@gmail.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>