loongson/pypi: links for bdcctools

loongson/mirror bdcctools-0.3.1.tar.gz
loongson/mirror bdcctools-0.3.1-py3-none-any.whl
loongson/mirror bdcctools-0.3.0.tar.gz
loongson/mirror bdcctools-0.3.0-py3-none-any.whl
loongson/mirror bdcctools-0.2.0.tar.gz
loongson/mirror bdcctools-0.2.0-py3-none-any.whl