loongson/pypi: links for lxt

loongson/mirror lxt-2.1.tar.gz
loongson/mirror lxt-2.0.tar.gz
loongson/mirror lxt-0.6.1.tar.gz
loongson/mirror lxt-0.6.1-py3-none-any.whl
loongson/mirror lxt-0.6.0.tar.gz
loongson/mirror lxt-0.5.9.tar.gz
loongson/mirror lxt-0.5.2.tar.gz
loongson/mirror lxt-0.5.1.tar.gz
loongson/mirror lxt-0.5.tar.gz
loongson/mirror lxt-0.1.tar.gz