[FEATURE] More parameters for user-type

Make it possible for user functions called from user-type
fields to received more than one parameter. Furthermore
each such parameter receives stdWrap capabilities.

Resolves: #62641
Releases: 1.8
Change-Id: I4d1fa2c4c876c806e338ce6eddb710c6f8e01c9e
Reviewed-on: http://review.typo3.org/34443
Reviewed-by: Francois Suter <francois@typo3.org>
Tested-by: Francois Suter <francois@typo3.org>