loongson/pypi: links for bitnigma

loongson/mirror bitnigma-1.1.0.tar.gz
loongson/mirror bitnigma-1.1.0-py3-none-any.whl
loongson/mirror bitnigma-1.0.4.zip
loongson/mirror bitnigma-1.0.3.zip
loongson/mirror bitnigma-1.0.2.zip
loongson/mirror bitnigma-1.0.1.zip