loongson/pypi: links for pg-populator-lib

loongson/mirror pg_populator_lib-0.0.4.tar.gz
loongson/mirror pg_populator_lib-0.0.3.tar.gz
loongson/mirror pg_populator_lib-0.0.2.tar.gz
loongson/mirror pg_populator_lib-0.0.1.tar.gz