Add TF implementation of XGLMModel (#16543)

* Add TFXGLM models 

* Add todo: self.supports_xla_generation = False

Co-authored-by: Daniel Stancl <stancld@Daniels-MacBook-Pro.local>
Co-authored-by: Daniel Stancl <stancld@daniels-mbp.home>
Co-authored-by: Joao Gante <joaofranciscocardosogante@gmail.com>
Co-authored-by: Daniel <daniel.stancl@rossum.ai>
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>

docs/source/en/model_doc/xglm.mdx

@@ -64,6 +64,16 @@ This model was contributed by [Suraj](https://huggingface.co/valhalla). The orig
 [[autodoc]] XGLMForCausalLM
     - forward
 
+## TFXGLMModel
+
+[[autodoc]] TFXGLMModel
+    - call
+
+## TFXGLMForCausalLM
+
+[[autodoc]] TFXGLMForCausalLM
+    - call
+
 ## FlaxXGLMModel
 
 [[autodoc]] FlaxXGLMModel