Introduce ZeROOffloadSubscriber for ORTModule (#17006)
### Introduce ZeROOffloadSubscriber for ORTModule
As part of the work: integrate ORTModule with DeepSpeed stage3, this PR
mainly focus on moving original PyTorch-based (leveraging hooks) param
partition/offload implementation to ORTModule compatible implementation.
Changes include:
1. Refactor `SubscriberBase`/`SubcriberManager` to support
pre-forward/post_forward hooks.
2. Implement new `ZeROOffloadSubscriber` by re-using DeepSpeed hook
function as much as possible. Since all hook functions are defined in
`DeepSpeedZeRoOffload._register_hooks_recursively` and
`DeepSpeedZeRoOffload.setup_zero_stage3_hooks`, and the good thing is,
the closure is not complex, all hooks are referencing the owning
`DeepSpeedZeRoOffload` instance, so we can create new hook function with
`FunctionType` by binding the owning `DeepSpeedZeRoOffload` instance,
then call the new created function in subscriber's
`pre_forward_module_apply_impl` and `post_forward_module_apply_impl`
interfaces.
3. Monkey patch `DeepSpeedZeRoOffload.setup_zero_stage3_hooks` to
register the `ZeROOffloadSubscriber` for the model, then we don't need
change any code on the DeepSpeed repo (at least so far).
4. Fix the ATen embedding custom symbolic exporter function by
tolerating weights size be (0) (changed by DeepSpeed zero stage 3).
UT will be added once stage3 is fully supported.
### Motivation and Context
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