root/pypi: links for pycgnat

root/pypi pycgnat-1.0.0.tar.gz
root/pypi pycgnat-1.0.0-py3-none-any.whl
root/pypi pycgnat-1.0b1.tar.gz
root/pypi pycgnat-1.0b1-py3-none-any.whl