loongson/pypi: links for cassandra-dataset-manager

loongson/mirror cassandra-dataset-manager-0.5.tar.gz
loongson/mirror cassandra-dataset-manager-0.4.tar.gz
loongson/mirror cassandra-dataset-manager-0.3.tar.gz
loongson/mirror cassandra-dataset-manager-0.2.tar.gz
loongson/mirror cassandra-dataset-manager-0.1.tar.gz