loongson/pypi: links for pyflac

loongson/mirror pyFLAC-3.0.0.tar.gz
loongson/mirror pyFLAC-2.2.0.tar.gz
loongson/mirror pyFLAC-2.1.0.tar.gz
loongson/mirror pyFLAC-2.0.0.tar.gz
loongson/mirror pyFLAC-1.0.0.tar.gz