Tutorial notebook should include ability to make predictions on any region

[ivanzvonkov]

Context: The tutorial.ipynb notebook includes example Earth observation data from Togo for making an example map. This method uses existing data stored in a public Google Cloud bucket.

Issue: To the user, it is unclear how the data in the bucket is obtained from EarthEngine.

Potential solution: Add example EarthEngine code to pull in data for any region inside the tutorial notebook. This will have to pull the data directly into Colab to avoid a dependency on Google Cloud Storage or Google Drive.