Adds scripts to benchmark tfhub models and check discrepencies

[xadupre]

No description provided.

[lgtm-com]

This pull request introduces 2 alerts when merging e04e29d into d4be5af - view on LGTM.com

new alerts:

• 2 for Unused import

[guschmue]

Not sure if it belongs in examples, maybe consider moving it into a subdir under tests.
There is also tests/run_pretrained_models.py that does similar things ... you could for example add a source 'tfhub' there.

[xadupre]

Not sure if it belongs in examples, maybe consider moving it into a subdir under tests.
There is also tests/run_pretrained_models.py that does similar things ... you could for example add a source 'tfhub' there.

So I rename example/benchmark into tests/tfhub?

[guschmue]

yes, something like that. If you can make it fairly generic, run_pretrained_models.py would work good I think.

[xadupre]

I hesitated. I wanted to create something people could copy paste and reuse. run_pretrained_models is very long.

[guschmue]

I did the same for tests/huggingface.py but there some other team wanted to run it outside tf2onnx :(
With tfhub I fear it might not be generic enough ... sometimes one needs to do extra stuff to make it work which might not work well with run_pretrained_models.