root/pypi: links for snippy-nextgen

root/pypi snippy_nextgen-0.4.0.tar.gz
root/pypi snippy_nextgen-0.4.0-py3-none-any.whl
root/pypi snippy_nextgen-0.3.9.tar.gz
root/pypi snippy_nextgen-0.3.9-py3-none-any.whl