T28756 Fixed crash in PickingTool
Summary:
Fixed crash in PickingTool
- LabelSetImage can now also clear its buffer when it is 4D (reason for crash)
- Incidential finding: Fixed missing default initialization in GantryTiltInformation.
Test Plan: Code review, unit test
Reviewers: O1 MITK Reviewer Group I, kislinsk
Reviewed By: O1 MITK Reviewer Group I, kislinsk
Maniphest Tasks: T28756
Differential Revision: https://phabricator.mitk.org/D560