Add semantic guidance pipeline (#2223)
* Add semantic guidance pipeline
* Fix style
* Refactor Pipeline
* Pipeline documentation
* Add documentation
* Fix style and quality
* Fix doctree
* Add tests for SEGA
* Update src/diffusers/pipelines/semantic_stable_diffusion/pipeline_semantic_stable_diffusion.py
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
* Update src/diffusers/pipelines/semantic_stable_diffusion/pipeline_semantic_stable_diffusion.py
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
* Update src/diffusers/pipelines/semantic_stable_diffusion/pipeline_semantic_stable_diffusion.py
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
* Make compatible with half precision
* Change deprecation warning to throw an exception
* update
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Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
