loongson/pypi: links for s2reader

loongson/mirror s2reader-0.5.tar.gz
loongson/mirror s2reader-0.4.tar.gz
loongson/mirror s2reader-0.3.3.tar.gz
loongson/mirror s2reader-0.3.2.tar.gz
loongson/mirror s2reader-0.2.tar.gz
loongson/mirror s2reader-0.1.tar.gz