Fix Windows compile error.

CMakeLists.txt

src/CMakeLists.txt

src/Collision/SpatialHashCollision.cpp

src/Core/CollisionPair.cpp

src/Core/Light.cpp

src/External/moller.h

src/Mesh/VegaSceneObject.cpp

src/Mesh/VegaSceneObjectDeformable.cpp

src/RenderDelegates/Config.h

src/Rendering/ConfigRendering.h

src/VirtualTools/CMakeLists.txt

src/VirtualTools/curvedGrasper.cpp

src/VirtualTools/curvedGrasper.h