[ONNX] Enable tensordot symbolic function. (#55654) (#56166)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56166
Support tensordot in symbolic function of opset 12, and add tests accordingly.
Test Plan: Imported from OSS
Reviewed By: pbelevich
Differential Revision: D27866140
Pulled By: SplitInfinity
fbshipit-source-id: 68e218cfbd630900fb92871fc7c0de3e7e8c8c3d
