Propagate TLS callbacks with ThreadLocalState (#37745)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37745
This PR makes it possible to set TLS callbacks and use
them transparently not only in the main thread but also
in any async tasks
Test Plan: Imported from OSS
Differential Revision: D21374873
Pulled By: ilia-cher
fbshipit-source-id: 3be2e121673b32d7694e17e794f3b474826dffe9
