root/pypi: links for castl

root/pypi castl-0.6.1.tar.gz
root/pypi castl-0.6.1-py3-none-any.whl
root/pypi castl-0.6.0.tar.gz
root/pypi castl-0.6.0-py3-none-any.whl
root/pypi castl-0.5.0.tar.gz
root/pypi castl-0.5.0-py3-none-any.whl