Fwd-Bwd correctness tests for TBEs, kernels (#2152)

Summary:
Pull Request resolved: #2152

Adding more tests for kernels coverage, testing inductor compilation and forward-backward numerical correctness.

Reviewed By: TroyGarden, gnahzg

Differential Revision: D58869080

fbshipit-source-id: 002a41d88b2435fbc97bb71509d3bf1afec89251

Author: Ivan Kobzarev