Also making the ::osvr::Compositor::DisplayServerInterfaceD3D11Singleton a friend of the D3DBase RenderManager.
Also making the ::osvr::Compositor::DisplayServerInterfaceD3D11Singleton a friend of the D3DBase RenderManager.

sensics/OSVR-RenderManager,sensics/OSVR-RenderManager,sensics/OSVR-RenderManager