loongson/mirror: links for ikaaro

loongson/mirror ikaaro-0.75.0.tar.gz
loongson/mirror ikaaro-0.61.4.tar.gz
loongson/mirror ikaaro-0.50.5.tar.gz
loongson/mirror ikaaro-0.50.4.tar.gz
loongson/mirror ikaaro-0.50.3.tar.gz
loongson/mirror ikaaro-0.50.2.tar.gz
loongson/mirror ikaaro-0.50.1.tar.gz
loongson/mirror ikaaro-0.50.0.tar.gz