In order to test the updated segmentation plugin the checklists have to be updated. This includes:
[x] removing multilabel segmentation checklists
- [x] except for utilities
[x] removing tests for Watershed and Fast Marching
[x] updating description of interpolation (only works with a single label)
[] hide (multilabel) segmentation utilities checklists as we are aware of the bugs
[x] use "show only selected nodes" instad of "auto-selection"