InternLM / InternLM/lmdeploy

[Feature] 请求在 TurboMind 引擎中实现 InternVL3 和 Qwen2.5VL 的前缀缓存 (Prefix Caching) 功能

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Description

### Motivation

因为不支持前缀缓存,不能设置--enable-prefix-caching参数,目前在多轮对话里响应速度非常慢。vLLM现在已经支持vl模型的前缀缓存,但他们的输出速度却不如LMDeploy,希望LMDeploy也可以支持vl模型的前缀缓存功能。

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### Additional context

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