loongson/pypi: links for pyadder

loongson/mirror PyAdder-0.0.5.tar.gz
loongson/mirror PyAdder-0.0.5-py3-none-any.whl
loongson/mirror PyAdder-0.0.4.tar.gz
loongson/mirror PyAdder-0.0.4-py3-none-any.whl
loongson/mirror PyAdder-0.0.1.tar.gz