Support for lumina dimoo

[qianyu-dlut]

What does this PR do?

The PR implements a pipeline for Lumina-DiMOO, an omni foundational model for seamless multimodal generation and understanding. This implementation integrates a Lumina-DiMOO switch for T2I, I2I editing, and MMU.

Project / GitHub / Model

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• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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Relates to #12358

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@synbol @ChinChyi

[SekiroRong]

Hi, the branch you commit seems need model_index.json to work

[qianyu-dlut]

Hi, the branch you commit seems need model_index.json to work

Hi! Thanks for the reminder, we’ve uploaded the model_index.json file to our Hugging Face repository. It should work properly now.