Create dataset loader for Okapi m-Hellaswag

[SamuelCahyawijaya]

Dataloader name: okapi_m_hellaswag/okapi_m_hellaswag.py
DataCatalogue: http://seacrowd.github.io/seacrowd-catalogue/card.html?okapi_m_hellaswag

Dataset	okapi_m_hellaswag
Description	m-Hellaswag is a multi-lingual version of Hellaswag, a commonsense inference challenge dataset. Though its questions are trivial for humans (>95% accuracy), state-of-the-art models struggle (
Subsets	-
Languages	ind, vie
Tasks	Question Answering
License	Creative Commons Attribution Non Commercial 4.0 (cc-by-nc-4.0)
Homepage	http://nlp.uoregon.edu/download/okapi-eval/datasets/
HF URL	https://huggingface.co/datasets/jon-tow/okapi_hellaswag
Paper URL	https://arxiv.org/abs/2307.16039

[tellarin]

#self-assign

[tellarin]

Back working on this. Sorry for the delay.