Add TrOCR resources
# What does this PR do?

Adds resources of OpenAI GPT according to https://github.com/huggingface/transformers/issues/20055

Fixes #20055 (partially)


## Before submitting
- [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).

## Who can review?

Anyone in the community is free to review the PR once the tests have passed. Feel free to tag
members/contributors who may be interested in your PR.

@stevhliu 

_The documentation is not available anymore as the PR was closed or merged._