message: Register hooks for unsupported functions
  * This is necessary on e.g. Windows where some legacy functions are only
  exported via the dll and need to be 'properly' hooked and not just intercepted
  via GL's GetProcAddr
diff: @@ -290,7 +290,12 @@ void GLHook::RegisterHooks()
  libraryName, \
  FunctionHook(STRINGIZE(name), (void **)&GL.func, (void *)&CONCAT(func, _renderdoc_hooked)));
  +#define RegisterUnsupportedFunc(name) \
  + LibraryHooks::RegisterFunctionHook( \
  + libraryName, FunctionHook(STRINGIZE(name), NULL, (void *)&CONCAT(name, _renderdoc_hooked)));
  +
  ForEachSupported(RegisterFunc);
  + ForEachUnsupported(RegisterUnsupportedFunc);
  #if ENABLED(RDOC_WIN32)
  if(ShouldHookEGL())
  