model : add Kimi-K2 support (#14654)

model : add Kimi-K2 support (#14654)

* Kimi-K2 conversion

* add Kimi_K2  pre type

* Kimi-K2

* Kimi-K2 unicode

* Kimi-K2

* LLAMA_MAX_EXPERTS 384

* fix vocab iteration

* regex space fix

* add kimi-k2 to pre_computed_hashes

* Updated with kimi-k2 get_vocab_base_pre hash

* fix whitespaces

* fix flake errors

* remove more unicode.cpp whitespaces

* change set_vocab() flow

* add moonshotai-Kimi-K2.jinja to /models/templates/

* update moonshotai-Kimi-K2.jinja

* add kimi-k2 chat template

* add kimi-k2

* update NotImplementedError

Co-authored-by: Sigbjørn Skjæret <redacted>
* except Exception

Co-authored-by: Sigbjørn Skjæret <redacted>
* LLM_CHAT_TEMPLATE_KIMI_K2 if(add_ass){}

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Co-authored-by: Sigbjørn Skjæret <redacted>