Add data augmentation pipeline scripts for CY use case

[robknapen]

What does this PR do?

This will add the scripts I used to add NDVI features (from Sentinel-2 and MODIS) and climate related features (from AgERA5) to the base AI-ready crop yield Africa dataset, and do (simple) comparisons using XGBoost and PCA to evaluate the resulting datasets. There is a TUI script that attempts to guide you through the various augmentation steps.

It is kind of stand-alone pipeline, so shouldn't break anything within the xAI framework itself.

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[gabrieletijunaityte]

I had a quick look, it looks very well documented and structured! Thank you!