loongson/pypi: links for setprecision

loongson/mirror SetPrecision-0.2.0.tar.gz
loongson/mirror SetPrecision-0.2.0-py3-none-any.whl
loongson/mirror SetPrecision-0.1.0.tar.gz
loongson/mirror SetPrecision-0.1.0-py3-none-any.whl