fix: add bge-m3 ModelMeta

[Samoed]

ref #1803

Checklist

• Run tests locally to make sure nothing is broken using make test.
• Run the formatter to format the code using make lint.

[x-tabdeveloping]

I'm a bit unsure why these are commented out?

[Samoed]

I've taken these language codes from the discussion, but I can't find them in the language mapping or I'm not sure which ones they correspond to.

[x-tabdeveloping]

oooh okay ChatGPT usually does a remarkable job at matching these, there is also a Python library that can do this for you, wait a sec I'll find it

[x-tabdeveloping]

@Samoed It's called ISO639 and it feels like magic

[Samoed]

I think that we have not all langs in LANG_MAPPING

mteb/mteb/evaluation/LangMapping.py

Line 5 in d7a7791

LANG_MAPPING = {

[Samoed]

Hm. Semes that LANG_MAPPING used only in MTEB class. I think this should be removed in v2

[x-tabdeveloping]

hmm yea interesting

[Samoed]

I can't find an easy way to get script from the language, so I'll leave it as is for now.

[x-tabdeveloping]

Hmm, again, I think LLMs can be a good friend in doing that. If you have the name of the language you're also probably a google search away from the solution. And most languages use Latin, Arab or Cyrillic script anyway, so there are some sensible defaults to go with.

[x-tabdeveloping]

Looks great otherwise, feel free to merge!