Add MT parallel dataset to mbaza-nlp hugginface platform

[rutsam]

Goal: add the dataset from the machine translation dataset to the mbaza-nlp huggingface platform
Definition of done

• Add the dataset done by Arnaud
• Add the dataset done by Rene
• Add the dataset done by Kefas

[rutsam]

@rutsam will upload the dataset

[rutsam]

Only uploaded dataset for Arnaud and Kefas since it is more accurate, Rene dataset is not clear, but @IMdtman will request Rene to scrape more data 500 articles of Wikipedia

[rutsam]

@agent87 will support @renepromesse on how to clean the dataset