loongson/mirror: links for simplemind-ng

loongson/mirror simplemind_ng-0.5.1.tar.gz
loongson/mirror simplemind_ng-0.5.1-py3-none-any.whl
loongson/mirror simplemind_ng-0.5.0.tar.gz
loongson/mirror simplemind_ng-0.5.0-py3-none-any.whl