Standardize tool interface

[ErikBjare]

Tools currently need to be registered in gptme/tools/__init__.py.

• It'd be nice if we didn't have to enumerate them in __init__.py and instead auto-discover them, or something.
  • Perhaps even allow users to easily specify their own tools folder/files.
  • Done in feat: allow to load tools from external modules #336
• enable/disable them in config or with a CLI param (done in 48d559b)

[ErikBjare]

Most of the work done in #86

[ErikBjare]

This is pretty clean now.

[ErikBjare]

Should maybe make a @tool decorator that takes a callable or ToolSpec and registers it/makes it loadable, then explicitly specify which tools to load during init.

Mainly so we can get rid of the stuff in tools/init.py where all the stuff gets imported (although we would still have to import it somehow, maybe dynamically during init).

[jrmi]

Solved by #336?

[ErikBjare]

Yes! 🥳