add squad Spanish v1 and v2
Nice ! :) 
Can we group them into one dataset with two versions, instead of having two datasets ? Yes sure, I can use the version as config name @lhoestq can you check? I grouped them Awesome :) feel free to merge after fixing the test in the CI @mariamabarham - feel free to merge when you're ready. I only checked the dummy files. I did not run the SLOW tests. 
This PR add the Spanish Squad versions 1 and 2 datasets. 
Fixes #164 