loongson/pypi: links for vtk-visualizer

loongson/mirror vtk_visualizer-0.9.6.tar.gz
loongson/mirror vtk_visualizer-0.9.5.tar.gz
loongson/mirror vtk_visualizer-0.9.4.zip
loongson/mirror vtk_visualizer-0.9.3.zip
loongson/mirror vtk_visualizer-0.9.2.zip
loongson/mirror vtk_visualizer-0.9.1.zip
loongson/mirror vtk_visualizer-0.9.0.zip