loongson/pypi: links for structuredgraphlearning

loongson/mirror StructuredGraphLearning-0.0.4.tar.gz
loongson/mirror StructuredGraphLearning-0.0.3.tar.gz
loongson/mirror StructuredGraphLearning-0.0.2.tar.gz
loongson/mirror StructuredGraphLearning-0.0.1.tar.gz