Make `pipeline` able to load `processor` (#32514)
* Refactor get_test_pipeline
* Fixup
* Fixing tests
* Add processor loading in tests
* Restructure processors loading
* Add processor to the pipeline
* Move model loading on tom of the test
* Update `get_test_pipeline`
* Fixup
* Add class-based flags for loading processors
* Change `is_pipeline_test_to_skip` signature
* Skip t5 failing test for slow tokenizer
* Fixup
* Fix copies for T5
* Fix typo
* Add try/except for tokenizer loading (kosmos-2 case)
* Fixup
* Llama not fails for long generation
* Revert processor pass in text-generation test
* Fix docs
* Switch back to json file for image processors and feature extractors
* Add processor type check
* Remove except for tokenizers
* Fix docstring
* Fix empty lists for tests
* Fixup
* Fix load check
* Ensure we have non-empty test cases
* Update src/transformers/pipelines/__init__.py
Co-authored-by: Lysandre Debut <hi@lysand.re>
* Update src/transformers/pipelines/base.py
Co-authored-by: Lysandre Debut <hi@lysand.re>
* Rework comment
* Better docs, add note about pipeline components
* Change warning to error raise
* Fixup
* Refine pipeline docs
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Co-authored-by: Lysandre Debut <hi@lysand.re>
