[Feature]: Add guided-* Parameters to Sampling Parameters

[zhanghx0905]

🚀 The feature, motivation and pitch

The openai endpoint of vllm now supports passing guided grammar in the request body. However, the current sampling parameters do not include corresponding parameters for guided grammar. This limitation prevents me from using guided grammar while utilizing the LLM Engine.

Please add support for guided-* parameters in the sampling parameters to enable the use of guided grammar with the LLM Engine.

With the addition of guided-* parameters in the sampling parameters, users will be able to leverage guided grammar in conjunction with the LLM Engine, enhancing the flexibility and functionality of the model.

Alternatives

No response

Additional context

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[zhanghx0905]

duplicate #5423