Implemented segmentation interaction test.
Includes tests for add, subtraction, paint, wipe and regiongrowing.
Updated interaction in the regiongrowingtool to the actual standard.
Included tests for fill, erase, correction tools.
Fixed regiongrowing behavior.
updated MITK-Data hash
Merge branch 'bug-18014-ToolInteractionTests'

Conflicts:
	CMakeExternals/MITKData.cmake