Add support for some extended parameters of llama.cpp(top_k, top_p, min_p, and repeat_penalty)

[plinkr]

• Added 'top_k,' 'top_p,' 'min_p,' and 'repeat_penalty' fields to the LlamaCompletionRequest class, utilizing default values from the llama.cpp documentation. If left untouched, these fields do not impact the model's response to the request.

In these URL there is information about those values: https://www.reddit.com/r/LocalLLaMA/comments/17vonjo/your_settings_are_probably_hurting_your_model_why/ https://github.com/huggingface/transformers/issues/27670