loongson/pypi: links for pathimp

loongson/mirror pathimp-1.4.0.tar.gz
loongson/mirror pathimp-1.3.0.tar.gz
loongson/mirror pathimp-1.2.0.tar.gz
loongson/mirror pathimp-1.1.0.tar.gz
loongson/mirror pathimp-1.0.0.tar.gz