root/pypi: links for tf2onnx-xzj

root/pypi tf2onnx-xzj-1.6.0.tar.gz
root/pypi tf2onnx_xzj-1.6.0-py3-none-any.whl
root/pypi tf2onnx_xzj-1.6.0-py2-none-any.whl