[TASK] Move install update flags to system registry

This moves the install update (aka "wizards") flags from
LocalConfiguration.php to the system registry and thus
into the database.

Resolves: #72290
Releases: master
Change-Id: Id319fa46d61e862e2429b93aedc7900315526e82
Reviewed-on: https://review.typo3.org/46904


Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>