loongson/pypi: links for pymatgraph

loongson/mirror pymatgraph-0.3.3.tar.gz
loongson/mirror pymatgraph-0.3.3-py3-none-any.whl
loongson/mirror pymatgraph-0.3.2.tar.gz
loongson/mirror pymatgraph-0.3.2-py3-none-any.whl
loongson/mirror pymatgraph-0.3.1.tar.gz
loongson/mirror pymatgraph-0.3.1-py3-none-any.whl
loongson/mirror pymatgraph-0.3.0.tar.gz
loongson/mirror pymatgraph-0.3.0-py3-none-any.whl