loongson/pypi: links for bigbang-py

loongson/mirror bigbang_py-0.6.1.tar.gz
loongson/mirror bigbang_py-0.6.1-py3-none-any.whl
loongson/mirror bigbang-py-0.4.4.tar.gz
loongson/mirror bigbang-py-0.4.2.tar.gz
loongson/mirror bigbang_py-0.4.2-py3-none-any.whl