Refactor attributes.h (#16098)
Summary:
This PR inlines `Attributes` into `Node`. It helps to cleanup the code a little as everything is one place (some of the cleanups are included in the PR).
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16098
Differential Revision: D13717637
Pulled By: ZolotukhinM
fbshipit-source-id: c54ae65178a95a01354688921a9ccb1ca699f8eb
Author
Mikhail Zolotukhin
