[`ONNX`] add `mobilenet` support (#633)
* add `mobilenet` support
* add tests
* fix test
* Apply suggestions from code review
Co-authored-by: Michael Benayoun <mickbenayoun@gmail.com>
* Update optimum/exporters/onnx/model_configs.py
Co-authored-by: fxmarty <9808326+fxmarty@users.noreply.github.com>
* fix
* remove uneeded functions
* revert some changes
* new fix
Co-authored-by: Michael Benayoun <mickbenayoun@gmail.com>
Co-authored-by: fxmarty <9808326+fxmarty@users.noreply.github.com>
