loongson/pypi: links for pylibtiff

loongson/mirror pylibtiff-0.6.1.tar.gz
loongson/mirror pylibtiff-0.6.0.tar.gz
loongson/mirror pylibtiff-0.5.1.tar.gz
loongson/mirror pylibtiff-0.5.0.post0.tar.gz
loongson/mirror pylibtiff-0.5.0.tar.gz
loongson/mirror pylibtiff-0.4.4.tar.gz