[BUGFIX] PropertyMapper now normalizes simple types

This fixes a bug where the property mapper was unable to find a
valid typeconverter for properties annotated with int or bool.

Resolves: #67044
Releases: master,6.2
Change-Id: Ie15b6d83e70c5857a09f1d8baa21c168924d63b4
Reviewed-on: http://review.typo3.org/39628


Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>