message: python wrapping for ComputeRoadPolygon
diff: @@ -88,6 +88,7 @@ void python_map(py::module m) {
  .def("GetLaneCorridor", &RoadCorridor::GetLaneCorridor)
  .def("GetCurrentLaneCorridor", &RoadCorridor::GetCurrentLaneCorridor)
  .def("GetLeftRightLaneCorridor", &RoadCorridor::GetLeftRightLaneCorridor)
  + .def("ComputeRoadPolygon", &RoadCorridor::ComputeRoadPolygon)
  .def_property_readonly("lane_corridors",
  &RoadCorridor::GetUniqueLaneCorridors)
  .def(py::pickle(
  