import openai messages json

[tarasglek]

openai completion endpoint accepts messages in format

{
    "messages": [
      {"role": "system", "content": "systemprompt"},
      {"role": "user", "content": "...."}
    ],
    "model": "gpt-3.5-turbo"
}

Would be great if we could import such json. This would make it easy to debug issues in ai apps with chatcraft.

Similarly, it would be nice to export in this format too