loongson/mirror: links for auxi-chemistry

loongson/mirror auxi_chemistry-2.7.7.tar.gz
loongson/mirror auxi_chemistry-2.7.7-py3-none-any.whl
loongson/mirror auxi_chemistry-2.7.2.tar.gz
loongson/mirror auxi_chemistry-2.7.2-py3-none-any.whl