New Features

• Hugging Face: Models loaded through the HuggingEngine now use chat templates for conversational prompting and tool usage if available by default. This should make it much easier to get started with a Hugging Face model in Kani.
• Added the ability to supply a custom tokenizer to the OpenAIEngine (e.g., for using OpenAI-compatible APIs)\

Fixes/Improvements

• Fixed a missing dependency in the llama extra
• The HuggingEngine will now automatically set device_map="auto" if the accelerate library is installed