[TASK] Integrate IRRE CSV Functional Tests

Integrate comma separated value functional tests for Inline
Relational Record Editing for both live and workspace context.

Resolves: #56143
Releases: 6.2
Change-Id: I8750cabd2e4df41e229ada888a43a104339cc55c
Reviewed-on: https://review.typo3.org/27752
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Oliver Hader
Tested-by: Oliver Hader