Add VisualCloze (#11377)
* VisualCloze
* style quality
* add docs
* add docs
* typo
* Update docs/source/en/api/pipelines/visualcloze.md
* delete einops
* style quality
* Update src/diffusers/pipelines/visualcloze/pipeline_visualcloze.py
* reorg
* refine doc
* style quality
* typo
* typo
* Update src/diffusers/image_processor.py
* add comment
* test
* style
* Modified based on review
* style
* restore image_processor
* update example url
* style
* fix-copies
* VisualClozeGenerationPipeline
* combine
* tests docs
* remove VisualClozeUpsamplingPipeline
* style
* quality
* test examples
* quality style
* typo
* make fix-copies
* fix test_callback_cfg and test_save_load_dduf in VisualClozePipelineFastTests
* add EXAMPLE_DOC_STRING to VisualClozeGenerationPipeline
* delete maybe_free_model_hooks from pipeline_visualcloze_combined
* Apply suggestions from code review
* fix test_save_load_local test; add reason for skipping cfg test
* more save_load test fixes
* fix tests in generation pipeline tests
