[huggingface] - Gradio Spaces Support

[afranzi]

It could be interesting to add an integration with Gradio Spaces when publishing the model to HuggingFace.

BTW, really good work done @TheLastBen on democratizing access to stable diffusion, thank you for all the hard work done here.

[TheLastBen]

Thanks, you can test your model on huggingface using diffusers once it's uploaded to your hf repo