Batch setup

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This is the version that we used to run our first deployment at scale.

What changes

Main pipeline logic changes:

• Only concatenate S2, DEM, and S1 arrays for each tile during tililng. This saves lots of memory as S2 can be kept in Uint16.
• Use indexing on the arrays instead of the .sel function. Indexing is almost instant, and sel is slow for large arrays.
• Make the target bucket name an argument

Organisational changes:

• Add info about how to run the pipeline on batch.
• Add mgrs sample data as geopackage.

[yellowcap]

Converted remaining questions to issues and will merge now for the sake of moving fast.