[Draft] Qwen2.5-VL

[ywang96]

No description provided.

[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.
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[ywang96]

The code should already run with

VLLM_USE_V1=1 python3 examples/offline_inference/vision_language.py --model qwen2_5_vl

but there are a few more things to be fixed...

[yixqiao]

Added a missing item for multi-modal tracker to enable chat API: https://github.com/yixqiao/vllm/tree/feature/qwen_2_5_vl

[ywang96]

Closing this in favor of #12604 for collaboration purposes