Separately exctracting the @validate annotations
makes resolving these annotations more testable.

Also this allows to deprecate the usage of @validate
in favor of a doctrine annotation.

Releases: master
Resolves: #83143
Change-Id: I4dfd93b58e08cd5c458abebee36e82e9ce03ad47
Reviewed-on: https://review.typo3.org/54838


Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>