[Feature] Support Video for Qwen VL

[remichu-ai]

Checklist

• 1. If the issue you raised is not a feature but a question, please raise a discussion at https://github.com/sgl-project/sglang/discussions/new/choose Otherwise, it will be closed.
• 2. Please use English, otherwise it will be closed.

Motivation

As Video usecase is becoming more popular, would it be possible to support Video for Qwen VL series?

Related resources

No response