Quantized KV Cache (#30483)

* clean-up

* Update src/transformers/cache_utils.py

Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>

* Update src/transformers/cache_utils.py

Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>

* Update src/transformers/cache_utils.py

Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>

* fixup

* Update tests/quantization/quanto_integration/test_quanto.py

Co-authored-by: Younes Belkada <49240599+younesbelkada@users.noreply.github.com>

* Update src/transformers/generation/configuration_utils.py

Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>

* more suggestions

* mapping if torch available

* run tests & add 'support_quantized' flag

* fix jamba test

* revert, will be fixed by another PR

* codestyle

* HQQ and versatile cache classes

* final update

* typo

* make tests happy

---------

Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
Co-authored-by: Younes Belkada <49240599+younesbelkada@users.noreply.github.com>

docs/source/en/internal/generation_utils.md

@@ -360,6 +360,12 @@ A [`Constraint`] can be used to force the generation to include specific tokens
 [[autodoc]] Cache
     - update
 
+[[autodoc]] CacheConfig
+	- update
+
+[[autodoc]] QuantizedCacheConfig
+	- validate
+
 [[autodoc]] DynamicCache
     - update
     - get_seq_length
@@ -367,6 +373,14 @@ A [`Constraint`] can be used to force the generation to include specific tokens
     - to_legacy_cache
     - from_legacy_cache
 
+[[autodoc]] QuantizedCache
+    - update
+    - get_seq_length
+
+[[autodoc]] QuantoQuantizedCache
+
+[[autodoc]] HQQQuantizedCache
+
 [[autodoc]] SinkCache
     - update
     - get_seq_length
@@ -375,7 +389,7 @@ A [`Constraint`] can be used to force the generation to include specific tokens
 [[autodoc]] StaticCache
     - update
     - get_seq_length
-    - reorder_cache
+    - reset
 
 
 ## Watermark Utils