Cherry-pick: f32dc3bc : Add dicom tags to segmentation image data. Formatting changes in multilabel plugin

Conflicts:
Plugins/org.mitk.gui.qt.multilabelsegmentation/src/internal/QmitkMultiLabelSegmentationView.cpp
Plugins/org.mitk.gui.qt.multilabelsegmentation/src/internal/QmitkMultiLabelSegmentationView.h