loongson/pypi: links for demandforge

loongson/mirror demandforge-0.2.2-py3-none-any.whl
loongson/mirror demandforge-0.2.1-py3-none-any.whl
loongson/mirror demandforge-0.2.0-py3-none-any.whl
loongson/mirror demandforge-0.1.0-py3-none-any.whl