Add a torch.hub.load_local() function that can load models from any local directory with a hubconf.py (#44204)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/43622
- Moves the model loading part of `torch.hub.load()` into a new `torch.hub.load_local()` function that takes in a path to a local directory that contains a `hubconf.py` instead of a repo name.
- Refactors `torch.hub.load()` so that it now calls `torch.hub.load_local()` after downloading and extracting the repo.
- Updates `torch.hub` docs to include the new function + minor fixes.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44204
Reviewed By: malfet
Differential Revision: D23817429
Pulled By: ailzhang
fbshipit-source-id: 788fd83c87a94f487b558715b2809d346ead02b2
