Add support to traverse all python collection objects (#84079)
Fixes https://github.com/pytorch/data/issues/752
This PR makes `traverse` function supporting more collections data structures from Python. The `getstate_hook` will be invoked after custom `__getstate__` function. This would guarantee that `traverse` function will be working as long as the `DataPipe` is working properly with multiprocessing.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/84079
Approved by: https://github.com/NivekT, https://github.com/VitalyFedyunin
