Migrate TCA and FlexForm with the TCA migration during bootstrap.

Resolves: #67793
Releases: master
Change-Id: I1cfa4196603832d6fb1d91a58ac12d05d48562a8
Reviewed-on: http://review.typo3.org/40660


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benjamin Mack <benni@typo3.org>
Tested-by: Benjamin Mack <benni@typo3.org>