erllama 0.10.1

Fixed

• chat/3 and chat_apply/3 hand tools to llama.cpp in the OpenAI
  shape ({"type": "function", "function": {...}}); the flat
  chat_tool() maps were rejected with chat_parse_failed.
• erllama_chat_SUITE starts the application with its dependencies when
  run on its own.

Added

• Load option chat_template: Jinja source replacing the template
  stored in the GGUF for chat/3 / chat_apply/3.
• examples/agent_loop: a tool-calling agent loop on chat/3.