SurfaceInterpolationController now uses PlaneGeometries instead of RestorePlanePositionOperations
Adapted tests
Added method for removing contours and adapted test.
Removed the SetSegmentationImage function since this can be done within the
SetCurrentInterpolationSession function
Cleanup
Fixed documentation
Merge branch 'bug-16775-live-wire-with-3d-interpolation' into removing-contour-for-3D-interpolation

Conflicts:
	Modules/Segmentation/Interactions/mitkLiveWireTool2D.cpp
	Modules/Segmentation/Interactions/mitkSegTool2D.cpp
	Modules/Segmentation/Interactions/mitkSegTool2D.h
	Modules/SurfaceInterpolation/Testing/mitkSurfaceInterpolationControllerTest.cpp
	Modules/SurfaceInterpolation/mitkSurfaceInterpolationController.cpp
	Modules/SurfaceInterpolation/mitkSurfaceInterpolationController.h
Merge branch 'bug-18006-removing-contour-for-3D-interpolation'

Conflicts:
	Modules/Segmentation/Interactions/mitkSegTool2D.cpp
	Modules/SurfaceInterpolation/mitkSurfaceInterpolationController.cpp
	Modules/SurfaceInterpolation/mitkSurfaceInterpolationController.h