[DCP] Enable filesystem/fsspec auto detection (#118888)
This API enables the ability to automatically detect whether to use filesystem or fsspec based on the checkpoint_id.
Differential Revision: [D53318043](https://our.internmc.facebook.com/intern/diff/D53318043/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/118888
Approved by: https://github.com/wz337, https://github.com/LucasLLC
