loongson/mirror: links for bitsteam

loongson/mirror bitsteam-0.1.1.tar.gz
loongson/mirror bitsteam-0.1.1-py3-none-any.whl
loongson/mirror bitsteam-0.1.0.tar.gz
loongson/mirror bitsteam-0.1.0-py3-none-any.whl