Adding per-method tracers to the module utility. Changing set_output_data_ptr to take in a method name. (#5279)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/5279

* Adding per-method tracers to the executorch module utilty to be able to profile/trace methods individually
* Enabling per-method output data pointers to be able to use per-method input/output memory planning through the module.

Reviewed By: tarun292

Differential Revision: D62520386

fbshipit-source-id: 6287701183e664d68435c48d6ed2b566e3d10d93