root/pypi: links for blitzdb3

root/pypi blitzdb3-3.1.tar.gz
root/pypi blitzdb3-3.1-py3-none-any.whl
root/pypi blitzdb3-3.0a3.tar.gz
root/pypi blitzdb3-3.0a2.tar.gz
root/pypi blitzdb3-3.0a1.tar.gz