Add helper utility methods for interacting with diffusers hooks

[a-r-r-o-w]

Context: #10815 (comment)

[HuggingFaceDocBuilderDev]

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[a-r-r-o-w]

Or would you alternatively prefer a context manager solution? Something like:

with model.disable_hooks([...]):
    model(...)

If that, we can probably support both context manager and method-based approach in the same code flow

[github-actions]

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