add support for oculus and openvr to VTK
Turning on these modules will add support for oculus and openvr to VTK These modules by default include a factory to override the default RenderWindow with specific VR subclasses. To use the factory you need to link your application to the vtkRenderingOpenVR or vtkRenderingOculus modules You can of course skip the factory and specifically create VR versions of RenderWindow Renderer Camera and RenderWindowInteractor. Thos are currently the main four classes you need to override.
These modules only work on Windows and require SDL2 as well as either the OculusSDK or OpenVR sdk