loongson/pypi: links for crown

loongson/mirror crown-0.3.1.tar.gz
loongson/mirror crown-0.3.0.tar.gz
loongson/mirror crown-0.1.7.tar.gz
loongson/mirror crown-0.1.6.tar.gz
loongson/mirror crown-0.1.5.tar.gz
loongson/mirror crown-0.1.4.tar.gz
loongson/mirror crown-0.1.2.tar.gz