* Rename bigdl/llm to ipex_llm * rm python/llm/src/bigdl * from bigdl.llm to from ipex_llm
* LLM: add codellama CPU pytorch examples * LLM: add codellama CPU transformers examples * LLM: add codellama GPU transformers examples * LLM: add codellama GPU pytorch examples * LLM: add codellama in readme * LLM: add LLaVA link