[Fast Processor] BEiT (#37005)

* adding fast processor for beit

* adding resample

* address review issues and add segmentation maps logic

* style

* chore: adding tests

* reduce label test

* adding batched tests

* Update src/transformers/models/beit/image_processing_beit_fast.py

Co-authored-by: Yoni Gozlan <74535834+yonigozlan@users.noreply.github.com>

* fix imports and make segmentation masks

* fix tests

* build segmentation maps

* all tests pass

* style

* style fix

* style

* chore: delete demo.py file

* review suggestions

* Update docs/source/en/model_doc/beit.md

Co-authored-by: Yoni Gozlan <74535834+yonigozlan@users.noreply.github.com>

---------

Co-authored-by: Yoni Gozlan <74535834+yonigozlan@users.noreply.github.com>

docs/source/en/model_doc/beit.md

@@ -150,6 +150,11 @@ If you're interested in submitting a resource to be included here, please feel f
 [[autodoc]] BeitImageProcessor
     - preprocess
     - post_process_semantic_segmentation
+## BeitImageProcessorFast
+
+[[autodoc]] BeitImageProcessorFast
+    - preprocess
+    - post_process_semantic_segmentation
 
 <frameworkcontent>
 <pt>

docs/source/ja/model_doc/beit.md

@@ -105,6 +105,11 @@ BEiT の使用を開始するのに役立つ公式 Hugging Face およびコミ
 
 [[autodoc]] BeitImageProcessor
     - preprocess
+
+## BeitImageProcessorFast
+
+[[autodoc]] BeitImageProcessorFast
+    - preprocess
     - post_process_semantic_segmentation
 
 ## BeitModel