Adding Qwen3 and Qwen3MoE (#36878)

* Initial commit for Qwen3

* fix and add tests for qwen3 & qwen3_moe

* rename models for tests.

* fix

* fix

* fix and add docs.

* fix model name in docs.

* simplify modular and fix configuration issues

* Fix the red CI: ruff was updated

* revert ruff, version was wrong

* fix qwen3moe.

* fix

* make sure MOE can load

* fix copies

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Co-authored-by: Arthur Zucker <arthur.zucker@gmail.com>

utils/check_config_docstrings.py

@@ -47,6 +47,7 @@ CONFIG_CLASSES_TO_IGNORE_FOR_DOCSTRING_CHECKPOINT_CHECK = {
     "LlamaConfig",
     "GraniteConfig",
     "GraniteMoeConfig",
+    "Qwen3MoeConfig",
 }