amd64/cu128: links for pyproper3

root/pypi PyPROPER3-3.2.1.tar.gz
root/pypi PyPROPER3-3.2.1-py3.7-macosx-10.15-x86_64.egg
root/pypi PyPROPER3-3.2.1-cp27-cp27m-macosx_10_15_x86_64.whl