message: Fixed MacOS build error
diff: namespace Diligent
  {
  - GLContext::GLContext( struct EngineGLAttribs &InitAttribs, DeviceCaps &DeviceCaps )
  + GLContext::GLContext( const EngineGLAttribs &InitAttribs, DeviceCaps &DeviceCaps )
  {
  if (GetCurrentNativeGLContext() == nullptr)
  {
  