Merge topic 'test-properties-directory'

2ccb897d86 get_test_property(): Add DIRECTORY option
84e76fedb0 get_property(TEST): Add DIRECTORY option
efc8f19cc5 set_tests_properties(): Add DIRECTORY option
753999d4db set_property(TEST): Add DIRECTORY option

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !8709