[FEATURE] Add field control "addRecord" to file_collections of

tt_content

The field control "addRecord" allows editors to create a file collection
within the content element of type uploads.

Resolves: #92486
Releases: master
Change-Id: Ie2873049e313de0d28827628a7305c68774f45ee
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/66018


Reviewed-by: Josef Glatz <josefglatz@gmail.com>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: Josef Glatz <josefglatz@gmail.com>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>