[FEATURE] Provide a way to sort form lists in ext:form

Forms in ext:form were previously not sorted in any manner, but just
outputted in the order they were read from the filesystem's directories.

Forms can now be sorted by multiple keys in either ascending or
descending order.
Two new yaml settings were introduced: `sortByKeys` and `sortAscending`.

Resolves: #87798
Releases: master
Change-Id: I2aae2e79cbd39394040a5b1280469a756bf0c7ca
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61896


Reviewed-by: Susanne Moog <look@susi.dev>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>