Check dynamo graph-breaks in CI (#96346)
- add graph-breaks baselines
- add check_graph_breaks script (message users on regress or improvement)
- hook up test.sh for existing accuracy job
Refactor graph-break CI check
Take steps toward merging checker with existing check flow,
consider merging it all the way inside the bench runner.
csvs
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96346
Approved by: https://github.com/ezyang
