Add support for Vicuna, Alpaca and LLaMA - fast ChatGPT-like models that run locally on a server(or any computer)

More info about the models Alpaca and LLaMA - https://github.com/DU-ComputerVisionLab/alpaca.cpp This combines the LLaMA foundation model(Large Language Model Meta AI - 65-billion-parameter large language model) with an open reproduction of Stanford Alpaca a fine-tuning of the base model to obey instructions (akin to the RLHF used to train ChatGPT) and a set of modifications to llama.cpp to add a chat interface. The model is easy to setup, lightweight on resources, compareble to ChatGPT, openAI independant, free and unlimited to use - may be setup on the free and trail plans for demo and testing. also Dalai project - https://github.com/cocktailpeanut/dalai and https://cocktailpeanut.github.io/dalai/ - Run LLaMA and Alpaca on your computer. also Vicuna: An Open-Source Chatbot Impressing GPT-4 with 90% ChatGPT Quality - https://vicuna.lmsys.org/ This could be used: https://github.com/keldenl/gpt-llama.cpp - gpt-llama.cpp is an API wrapper around llama.cpp. It runs a local API server that simulates OpenAI's API GPT endpoints but uses local llama-based models to process requests.