loongson/pypi: links for sigimp

loongson/mirror sigimp-0.1.8.tar.gz
loongson/mirror sigimp-0.1.8-py3-none-any.whl
loongson/mirror sigimp-0.1.7.tar.gz
loongson/mirror sigimp-0.1.7-py3-none-any.whl
loongson/mirror SigImp-0.1.6.tar.gz
loongson/mirror SigImp-0.1.6-py3-none-any.whl
loongson/mirror sigimp-0.1.4.tar.gz
loongson/mirror SigImp-0.1.4-py3-none-any.whl
loongson/mirror SigImp-0.1.3.tar.gz
loongson/mirror SigImp-0.1.3-py3-none-any.whl