loongson/pypi: links for pyigrf

loongson/mirror pyigrf-1.0.0.tar.gz
loongson/mirror pyigrf-1.0.0-py3-none-any.whl
loongson/mirror pyIGRF-0.3.3.tar.gz
loongson/mirror pyIGRF-0.3.1.tar.gz
loongson/mirror pyIGRF-0.3.0.tar.gz
loongson/mirror pyIGRF-0.2.0.tar.gz
loongson/mirror pyIGRF-0.1.8.tar.gz
loongson/mirror pyIGRF-0.1.7.tar.gz