[BUGFIX] Make TemplatePaths->fillDefaultsByPackageName sort paths

Due to the sequence of methods being called from this method,
it is necessary to sort TS-configured paths right when they are
resolved instead of passing the unsorted array further down.

Patch also sorts methods protected below public; true diff is
one line. Toggle this line between before/after and run the test
to see the problem demonstrated.

See issue description for a more detailed reasoning.

Change-Id: I0317c4ee683c2fac2c7def7c6d79f947afc4b078
Resolves: #81340
Releases: master, 8.7
Reviewed-on: https://review.typo3.org/52938


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Markus Sommer <markussom@posteo.de>
Tested-by: Markus Sommer <markussom@posteo.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>