[Pytorch Edge] Model Ops compatibility api (#57501)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/57501
Add an api _get_model_ops_and_info to get root operators and versioning info of a model in both cxx and python, and the input can be from a file path or buffer.
ghstack-source-id: 129620112
Test Plan: unit test.
Reviewed By: xcheng16, raziel
Differential Revision: D28162765
fbshipit-source-id: 4413c1e906b8a872e4a717d849da37347adbbea4
