Investigate how eodag product_types can be matched to GRASS GIS image band libraries

[ninsbl]

GRASS GIS maintains a image band library: https://github.com/OSGeo/grass/tree/main/scripts/i.band.library

That is not completely equivalent to EODAGs product types, but has some overlap. If there is time to look into "post-processing" later on, we may investigate how EODAGs product_types can be related to the image band library in GRASS GIS.

Product handling in eoreader: https://github.com/sertit/eoreader/tree/main/eoreader/products could be used for inspiration as well.

The purpose would be to support more standardized handling of imagery products in post-processing.

Only relevant if we agree to spend time on this...