loongson/mirror: links for txt2xls

loongson/mirror txt2xls-0.2.2.tar.gz
loongson/mirror txt2xls-0.2.1.tar.gz
loongson/mirror txt2xls-0.2.0.tar.gz
loongson/mirror txt2xls-0.1.1.tar.gz
loongson/mirror txt2xls-0.1.0.tar.gz