"Complete" operator listings
Taken from the listing found in operators.h
https://github.com/pybind/pybind11/blob/master/include/pybind11/operators.h
Relates to #120
Taken from the listing found in operators.h
https://github.com/pybind/pybind11/blob/master/include/pybind11/operators.h
Relates to #120