loongson/pypi: links for libdoug

loongson/mirror libdoug-0.4.tar.gz
loongson/mirror libdoug-0.3.tar.gz
loongson/mirror libdoug-0.2.1.tar.gz
loongson/mirror libdoug-0.2.1.linux-x86_64.tar.gz
loongson/mirror libdoug-0.2.tar.gz
loongson/mirror libdoug-0.2.linux-x86_64.tar.gz
loongson/mirror libdoug-0.1.tar.gz
loongson/mirror libdoug-0.1.linux-x86_64.tar.gz