Standalone nanotron config (#285)
What does this implement/fix? Explain your changes.
---------------------------------------------------
This PR moves the lighteval config to lighteval codebase.
- Enforces the lighteval_config_path as the only way to read the lighteval config. The nanotron part is ignore, this way the breaking changes won't be as breaking.
- Some typing corrections
---------
Co-authored-by: Nathan Habib <30601243+NathanHB@users.noreply.github.com>
Co-authored-by: Nathan Habib <nathan.habib@huggingface.co>
Co-authored-by: Hynek Kydlicek <kydlicek.hynek@huggingface.co>