Fix vega example to new renderer and IO and add more delegates.

Core/CMakeLists.txt

Core/Config.h

Core/Geometry.h

Core/Model.cpp

Core/Model.h

Core/RenderDelegate.h

Core/RenderDetail.h

Core/SDK.cpp

Core/StaticSceneObject.cpp

Examples/vegaFem/CMakeLists.txt

Examples/vegaFem/main.cpp

Geometry/MeshModel.cpp

Geometry/PlaneModel.cpp

Mesh/SurfaceMesh.cpp

Mesh/VegaVolumetricMesh.cpp

Mesh/VegaVolumetricMesh.h

RenderDelegates/AABBRenderDelegate.cpp

RenderDelegates/FemSceneRenderDelegate.cpp

RenderDelegates/MeshRenderDelegate.cpp

RenderDelegates/PBDSurfaceRenderDelegate.cpp