Pix2Struct onnxruntime support (#1296)
* add onnxruntime support for pix2struct
* Fix for Pix2Struct ORT
* Fix from_pretrained for pix2struct
* test
* test
* huggingface(#1288)
* Update optimum/onnxruntime/modeling_seq2seq.py
Co-authored-by: fxmarty <9808326+fxmarty@users.noreply.github.com>
* Update optimum/onnxruntime/modeling_seq2seq.py
Co-authored-by: fxmarty <9808326+fxmarty@users.noreply.github.com>
* Update optimum/onnxruntime/modeling_seq2seq.py
Co-authored-by: fxmarty <9808326+fxmarty@users.noreply.github.com>
* update modeling_seq2seq.py
* update modeling_seq2seq.py
* working ort inference pix2struct
* add documentation
* fix doc
---------
Co-authored-by: ARK <ark@Oblivion.local>
Co-authored-by: fxmarty <9808326+fxmarty@users.noreply.github.com>
