[Neos] Node Type Constraints are ready

[Christian Müller]

I reviewed and tweaked some minor things here and there. Nothing big
changed. All tests work for me, manual test looks good.

Cheers,
Christian

Sebastian Kurfürst wrote:
> Hey everybody,
> 
> The following three changes implement Node Type Constraints:
> 
> https://review.typo3.org/#/c/30795/ (also includes documentation and
> release notes)
> https://review.typo3.org/#/c/30789/
> https://review.typo3.org/#/c/31191/
> 
> From my side, that's good to be merged now; and Rens tested that on
> another real-world project as well.
> 
> Still, I thought it'd be good to give all of you the opportunity to have
> a look, that's why I posted it here.
> 
> Have fun, and hear you soon :)
> Sebastian