loongson/pypi: links for bt-nester

loongson/mirror bt_nester-1.4.0.zip
loongson/mirror bt_nester-1.3.0.zip
loongson/mirror bt_nester-1.2.0.zip
loongson/mirror bt_nester-1.1.0.zip
loongson/mirror bt_nester-1.0.0.zip