loongson/mirror: links for vtkwriters

loongson/mirror vtkwriters-0.0.12-py3-none-any.whl
loongson/mirror vtkwriters-0.0.10-py3-none-any.whl
loongson/mirror vtkwriters-0.0.9.tar.gz
loongson/mirror vtkwriters-0.0.9-py3-none-any.whl