* First push of bigdl-llm example for gptneox model family
* Add some args and other small updates
* Small updates
* Add example for llama family models
* Small fix
* Small fix
* Update for batch_decode api and change default model for llama example
* Small fix
* Small fix
* Small fix
* Small model family name fix and add example for bloom
* Small fix
* Small default prompt fix
* Small fix
* Change default prompt
* Add sample output for inference
* Hide example inference time