loongson/pypi: links for bcmd

loongson/mirror bcmd-0.6.19.tar.gz
loongson/mirror bcmd-0.6.19-py3-none-any.whl
loongson/mirror bcmd-0.6.18.tar.gz
loongson/mirror bcmd-0.6.18-py3-none-any.whl
loongson/mirror bcmd-0.6.17.tar.gz
loongson/mirror bcmd-0.6.17-py3-none-any.whl