ENH: added VisualModel

Examples/DeformableBody/DeformableBodyExample.cpp

Examples/GUIOverlay/GUIOverlayExample.cpp

Examples/LineMesh/LineMeshExample.cpp

Examples/PBDCloth/pbdClothExample.cpp

Examples/PBDCollision/PBDCollisionExample.cpp

Examples/PBDFluids/PBDFluidsExample.cpp

Examples/PBDVolume/PBDVolumeExample.cpp

Examples/Rendering/RenderingExample.cpp

Examples/Viewer/ViewerExample.cpp

Examples/VulkanDecals/VulkanDecalsExample.cpp

Examples/continuousCollisionDetection/ccdExample.cpp

Source/Geometry/imstkGeometry.cpp

Source/Geometry/imstkGeometry.h

...Renderer/RenderDelegate/imstkVTKCapsuleRenderDelegate.cpp

...TKRenderer/RenderDelegate/imstkVTKCapsuleRenderDelegate.h

...VTKRenderer/RenderDelegate/imstkVTKCubeRenderDelegate.cpp

...g/VTKRenderer/RenderDelegate/imstkVTKCubeRenderDelegate.h

...enderer/RenderDelegate/imstkVTKCylinderRenderDelegate.cpp

...KRenderer/RenderDelegate/imstkVTKCylinderRenderDelegate.h

...r/RenderDelegate/imstkVTKHexahedralMeshRenderDelegate.cpp