CORSA encode process

[dsamaey]

cfr. https://artifactory.vgt.vito.be/artifactory/auxdata-public/CORSA/graph.json

cfr. https://github.com/VITO-RS-CORSA/CORSA-S2-openEO

[bossie]

@HansVRP there's a point in the UDF where it applies some scaling to the input data cube; the scalers in question are pickled Python PowerTransformer objects on disk that I can't use from Scala. How to proceed?

[bossie]

Temporarily offloading the scaling step to Python makes it produce the expected level 0 and level 1 images (they can be decoded to restore the original image).