loongson/pypi: links for irtools

loongson/mirror IRTools-1.2.2.1.tar.gz
loongson/mirror IRTools-1.2.2.1-py3-none-any.whl
loongson/mirror IRTools-1.1.4.8.tar.gz
loongson/mirror IRTools-1.1.4.8-py2-none-any.whl