root/pypi: links for skutils

root/pypi skutils-0.2.1b0.tar.gz
root/pypi skutils-0.2.1b0-py3-none-any.whl
root/pypi skutils-0.2.0b0.tar.gz
root/pypi skutils-0.2.0b0-py3-none-any.whl
root/pypi skutils-0.1.0a0.tar.gz
root/pypi skutils-0.1.0a0-py3-none-any.whl