message: Allow python to use immediate mode rendering
  For python scripted rendering as we do for batch and timeseries.
diff: @@ -353,7 +353,8 @@ PYBIND11_MODULE(pysg, sg)
  .def(py::init<>())
  .def("saveFrame", &Frame::saveFrame)
  .def("waitOnFrame", &Frame::waitOnFrame)
  - .def("startNewFrame", &Frame::startNewFrame);
  + .def("startNewFrame", &Frame::startNewFrame)
  + .def_readwrite("immediatelyWait", &Frame::immediatelyWait);
  py::class_<Renderer,
  OSPNode<ospray::cpp::Renderer, NodeType::RENDERER>,
  