Merge branch 'listofshape_from_list' into 'master'

[occ] create ListOfShape from list of shapes

See merge request ngsolve/netgen!506

libsrc/occ/python_occ_shapes.cpp

@@ -1544,6 +1544,7 @@ DLL_HEADER void ExportNgOCCShapes(py::module &m)
   };
   
   py::class_<ListOfShapes> (m, "ListOfShapes")
+    .def(py::init<vector<TopoDS_Shape>>())
     .def("__iter__", [](ListOfShapes &s) {
         return py::make_iterator(ListOfShapesIterator(&*s.begin()),
                                  ListOfShapesIterator(&*s.end()));