loongson/pypi: links for convclasses

loongson/mirror convclasses-2.0.0.tar.gz
loongson/mirror convclasses-2.0.0-py2.py3-none-any.whl
loongson/mirror convclasses-1.1.0.tar.gz
loongson/mirror convclasses-1.1.0-py2.py3-none-any.whl
loongson/mirror convclasses-1.0.0.tar.gz
loongson/mirror convclasses-1.0.0-py2.py3-none-any.whl