loongson/mirror: links for pyobigram

loongson/mirror pyobigram-2.1.1.tar.gz
loongson/mirror pyobigram-2.1.1-py3-none-any.whl
loongson/mirror pyobigram-2.1.0.tar.gz
loongson/mirror pyobigram-2.1.0-py3-none-any.whl