Check if matrix is rotation. Safe calculate dominant axes.
Summary: Add tests if rotation matrix check and default dominant axes calculation work.
Test Plan: Added additonal tests if imperfect rotation matrices are caught. Normal behaviour should be covered by current tests.
Reviewers: O1 MITK Core, kislinsk
Reviewed By: O1 MITK Core, kislinsk
Subscribers: kislinsk
Maniphest Tasks: T25682
Differential Revision: https://phabricator.mitk.org/D192