loongson/pypi: links for bbndb

loongson/mirror bbndb-2020.1.tar.gz
loongson/mirror bbndb-2020.1-py3-none-any.whl
loongson/mirror bbndb-2019.2.tar.gz
loongson/mirror bbndb-2019.2-py3-none-any.whl
loongson/mirror bbndb-2019.1.tar.gz
loongson/mirror bbndb-2019.1-py3-none-any.whl