[!!!][TASK] Make all enumerations final

Code which uses enumerations expects a known set of values, adding
more values by extending these classes leads to undefined behavior.

Since it is now impossible to create a mock of an enumeration also
drop a few Enumeration tests and stick to testing of the public API.

Resolves: #85025
Releases: master
Change-Id: I3d0238c85ae916052dc1aa503f7f8e39c1765ac6
Reviewed-on: https://review.typo3.org/56976


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Tested-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Tested-by: Jan Helke <typo3@helke.de>
Reviewed-by: Jan Helke <typo3@helke.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>