Add intern vl3 and internvl3_5 (#963)

* add InternVL3 model support

Add support for InternVL3 and InternVL3.5 models including:
- InternVL3-8B (OpenGVLab/InternVL3-8B)
- InternVL3.5-30B-A3B (OpenGVLab/InternVL3_5-30B-A3B)

The implementation supports both single GPU and multi-GPU inference
with automatic device mapping.

* separate InternVL3 and InternVL3.5 models

Add internvl3_5.py as thin wrapper around InternVL3 with different
default pretrained model. Both share same logic since they have
identical interfaces.

* minor changes

* lint

* address review

Author: ngquangtrung57

lmms_eval/models/__init__.py

@@ -34,6 +34,8 @@
     "internvideo2": "InternVideo2",
     "internvl": "InternVLChat",
     "internvl2": "InternVL2",
+    "internvl3": "InternVL3",
+    "internvl3_5": "InternVL3_5",
     "llama_vid": "LLaMAVid",
     "llama_vision": "LlamaVision",
     "llava_hf": "LlavaHf",