ENH: Delegate hints & separated factory

Examples/SpringTuneTest/CMakeLists.txt

Examples/SpringTuneTest/SpringTuneTest.cpp

Examples/SpringTuneTest/imstkChartVisualModel.cpp

Examples/SpringTuneTest/imstkChartVisualModel.h

Examples/SpringTuneTest/imstkVTKChartRenderDelegate.cpp

Examples/SpringTuneTest/imstkVTKChartRenderDelegate.h

Source/RenderingVTK/CMakeLists.txt

...nderingVTK/RenderDelegate/imstkVTKCapsuleRenderDelegate.h

...RenderingVTK/RenderDelegate/imstkVTKFluidRenderDelegate.h

...deringVTK/RenderDelegate/imstkVTKPointSetRenderDelegate.h

...ce/RenderingVTK/RenderDelegate/imstkVTKRenderDelegate.cpp

Source/RenderingVTK/RenderDelegate/imstkVTKRenderDelegate.h

...gVTK/RenderDelegate/imstkVTKSurfaceNormalRenderDelegate.h

Source/RenderingVTK/imstkRenderDelegateObjectFactory.cpp

Source/RenderingVTK/imstkRenderDelegateObjectFactory.h

Source/SceneEntities/Objects/imstkVisualModel.cpp

Source/SceneEntities/Objects/imstkVisualModel.h