Add hasattr to torch::deploy interface and hasMethod to PredictorContainer (#62669)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62669
Useful to avoid having to implement null checking on the application side.
Test Plan: Add unit tests
Reviewed By: suo, houseroad
Differential Revision: D30074406
fbshipit-source-id: 881aec735953b43cb24786c1a2d79e8e724928b8
