[TASK] Doctrine: Migrate ExtendedFileUtility

Resolves: #77488
Releases: master
Change-Id: Ie24459615f6d5283dc35c86a33f15d544b991b6b
Reviewed-on: https://review.typo3.org/49459


Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>