Merge topic 'COVERAGE_InteractionWidgets' into master

Interaction/Widgets/Testing/Cxx/CMakeLists.txt

...on/Widgets/Testing/Data/Baseline/ImagePlaneWidget.png.md5

...idgets/Testing/Data/Baseline/TestBrokenLineWidget.png.md5

...gets/Testing/Data/Baseline/TestBrokenLineWidget_1.png.md5

...gets/Testing/Data/Baseline/TestBrokenLineWidget_2.png.md5

...on/Widgets/Testing/Data/Baseline/TestButtonWidget.png.md5

...Testing/Data/Baseline/TestImageActorContourWidget.png.md5

...ion/Widgets/Testing/Data/Baseline/TestOrthoPlanes.png.md5

...on/Widgets/Testing/Data/Baseline/TestSplineWidget.png.md5

.../Widgets/Testing/Data/Baseline/TestSplineWidget_1.png.md5

Interaction/Widgets/module.cmake