loongson/pypi: links for nullplus

loongson/mirror nullplus-1.2.tar.gz
loongson/mirror nullplus-1.2-py3-none-any.whl
loongson/mirror nullplus-1.1.1.tar.gz
loongson/mirror nullplus-1.1.1-py3-none-any.whl
loongson/mirror nullplus-1.0.tar.gz
loongson/mirror nullplus-1.0-py3-none-any.whl