ENH: improved line mesh class

Examples/LineMesh/CMakeLists.txt

Examples/LineMesh/LineMesh.cpp

Examples/PBDCloth/pbdClothExample.cpp

Examples/PBDFluids/PBDFluidsExample.cpp

Examples/Rendering/Rendering.cpp

...inuousCollisionDetection/continuousCollisionDetection.cpp

Source/Collision/imstkPbdInteractionPair.cpp

Source/Geometry/Mesh/imstkLineMesh.cpp

Source/Geometry/Mesh/imstkLineMesh.h

Source/Geometry/imstkGeometry.h

Source/Materials/imstkRenderMaterial.cpp

Source/Materials/imstkRenderMaterial.h

Source/Rendering/CMakeLists.txt

...enderer/RenderDelegate/imstkVTKLineMeshRenderDelegate.cpp

...ing/VTKRenderer/RenderDelegate/imstkVTKRenderDelegate.cpp

...ce/Rendering/VTKRenderer/imstkVTKCustomPolyDataMapper.cpp

...derer/RenderDelegate/imstkVulkanCapsuleRenderDelegate.cpp

...enderer/RenderDelegate/imstkVulkanCapsuleRenderDelegate.h

...Renderer/RenderDelegate/imstkVulkanCubeRenderDelegate.cpp

...anRenderer/RenderDelegate/imstkVulkanCubeRenderDelegate.h