loongson/mirror: links for nivestor

loongson/mirror nivestor-0.6-py3-none-any.whl
loongson/mirror nivestor-0.5-py3-none-any.whl
loongson/mirror nivestor-0.4-py3-none-any.whl
loongson/mirror nivestor-0.3-py3-none-any.whl