[TASK] Add signal in ResourceFactory for storage creation

We miss a central place to adapt or change
configuration for a resource storage.

Add a signal in the resource factory to be able
to post process a storage object after creation.

Releases: 6.0, 6.1, 6.2
Resolves: #51011
Change-Id: Iace95bc50ab149b4e62dd85c01417b3a3e6bf1cf
Reviewed-on: https://review.typo3.org/23038
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters