[TASK] Simplify DataMapper::thawProperties()

The process of thawing properties didn't properly distinguish
between thawing types (int|float|object etc.) and thawing objects.

This has been mitigated by first using a match statement on the
built in type and handling different types of classes in a separate
method.

It's easier to read, maintain and extend.

Releases: main
Resolves: #101405
Change-Id: If85abd7fad12dc97b80b406d26aa528da4bc1588
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/80107


Tested-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>