loongson/mirror: links for pytorchresearch

loongson/mirror pytorchresearch-1.0.3-alpha.tar.gz
loongson/mirror pytorchresearch-1.0.2-alpha.tar.gz
loongson/mirror pytorchresearch-1.0.1-alpha.tar.gz
loongson/mirror pytorchresearch-1.0.0-alpha.tar.gz