[FEATURE] Add stdWrap to cObject USER.

Change-Id: I115b6a9674ff824ea6289f3882efa3350724c8a3
Fixes: #35305
Releases: 6.0
Reviewed-on: http://review.typo3.org/9966
Reviewed-by: Philipp Gampe
Reviewed-by: Markus Klein
Tested-by: Markus Klein
Reviewed-by: Stefan Galinski
Tested-by: Stefan Galinski