loongson/pypi: links for processmvnx

loongson/mirror ProcessMVNX-0.2.4.tar.gz
loongson/mirror ProcessMVNX-0.2.4-py3-none-any.whl
loongson/mirror ProcessMVNX-0.2.3-py3-none-any.whl
loongson/mirror ProcessMVNX-0.2.1-py3-none-any.whl