Read separate_asset_per_band and pass it to Scala code.

[EmileSonneveld]

(Depends on openeo-geotrellis-extensions code)

[jdries]

approved, the majority here is formatting changes, and you did not change api + there's a test -> in these cases, feel free to just commit and avoid asking a review

[EmileSonneveld]

The tests seems to be stuck on artifactory at the moment. It would be nice to run them again with the new geotrellis extensions before merging