Move Clipping Plane view into separate plugin
Summary:
Was part of the Segmentation plugin.
Fixes T27789.
Test Plan:
- Built and ran the workbench both with the new plugin enabled and disabled
- Note that a "/BlueBerry.clean" may be necessary depending on your setup
- Checked the F1 context help
Reviewers: O1 MITK Reviewer Group I, kalali
Reviewed By: O1 MITK Reviewer Group I, kalali
Subscribers: kalali
Maniphest Tasks: T27789
Differential Revision: https://phabricator.mitk.org/D433