Add stdWrap properties to references like it is done
in FilesContentObject. That way it is possible to select
FileResources from rootline.

Resolves: #78347
Releases: master
Change-Id: I257d063ad39f8bab531bd034150b1d556f12c56b
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62098


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Jörg Bösche <typo3@joergboesche.de>
Tested-by: Tobi Kretschmann <tobi@tobishome.de>
Tested-by: Susanne Moog <look@susi.dev>
Reviewed-by: Jörg Bösche <typo3@joergboesche.de>
Reviewed-by: Tobi Kretschmann <tobi@tobishome.de>
Reviewed-by: Felix P. <f.pachowsky@neusta.de>
Reviewed-by: Susanne Moog <look@susi.dev>