message: Add Python binding for ArcballCamera::rotate to enable some minimal camera positioning from Python scripts.
diff: @@ -234,7 +234,8 @@ PYBIND11_MODULE(pysg, sg)
  // Arcball Camera ////////////////////////////////////////////////////
  py::class_<ArcballCamera>(sg, "ArcballCamera")
  - .def(py::init<const box3f &, const vec2i &>());
  + .def(py::init<const box3f &, const vec2i &>())
  + .def("rotate", &ArcballCamera::rotate);
  sg.def("updateCamera", &updateCamera);
  