loongson/pypi: links for pyradialplot

loongson/mirror pyRadialPlot-0.4.tar.gz
loongson/mirror pyRadialPlot-0.3.tar.gz
loongson/mirror pyRadialPlot-0.2.tar.gz
loongson/mirror pyRadialPlot-0.1.tar.gz
loongson/mirror pyRadialPlot-0.1-py3.7.egg