loongson/pypi: links for xmode

loongson/mirror xmode-0.6.1.tar.gz
loongson/mirror xmode-0.6.tar.gz
loongson/mirror xmode-0.5.tar.gz
loongson/mirror xmode-0.4.tar.gz
loongson/mirror xmode-0.3.tar.gz
loongson/mirror xmode-0.2.tar.gz
loongson/mirror xmode-0.1.tar.gz