loongson/mirror: links for crengine

loongson/mirror crengine-3.2.1.tar.gz
loongson/mirror crengine-3.2.1-py3-none-any.whl
loongson/mirror crengine-3.1.1.tar.gz
loongson/mirror crengine-3.1.1-py3-none-any.whl