Remove Multilabel Segmentation plugin
Moved remaining actions to Segmentation plugin.
Multilabel Utilities were dysfunctional.
We will enhance the Segmentation Utilities to be more aware of labels.
Checked the moved actions in the Data Manager context menu to be still present.
Make sure to do a clean start (/BlueBerry.clean), since the multilabelsegmentation plugin was removed.
Reviewers: kalali, O1 MITK Reviewer Group I
Reviewed By: kalali, O1 MITK Reviewer Group I
Differential Revision: https://phabricator.mitk.org/D744