[FEATURE] Introduce fluid data-processor for menus

This menu processor utilizes HMENU to generate a json encoded menu
string that will be decoded again and assigned to FLUIDTEMPLATE as
variable. Additional DataProcessing is supported and will be applied
to each record.

Resolves: #78672
Releases: master
Change-Id: Ic7aa230f8fbd524df77a54bf92f4145d6eadaf3e
Reviewed-on: https://review.typo3.org/50608


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Frans Saris <franssaris@gmail.com>
Tested-by: Frans Saris <franssaris@gmail.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>