Use to instead of constructing ToddCoxeter from WordGraph#462

Joseph-Edwards merged 1 commit into

libsemigroups:mainlibsemigroups/libsemigroups_pybind11:mainfrom

Joseph-Edwards:fix-todd-coxeter-testsJoseph-Edwards/libsemigroups_pybind11:fix-todd-coxeter-testsCopy head branch name to clipboard