loongson/pypi: links for waifu2x-ncnn-vulkan-python

loongson/mirror waifu2x-ncnn-vulkan-python-1.0.4.tar.gz
loongson/mirror waifu2x-ncnn-vulkan-python-1.0.3.tar.gz
loongson/mirror waifu2x-ncnn-vulkan-python-1.0.2rc3.tar.gz
loongson/mirror waifu2x-ncnn-vulkan-python-1.0.1.tar.gz