proposal: modify the decks structure separating cards

[kodawah]

Right now the set.Decks structure is composed of a few main elements (among which sealedProductUuids, name, and code) and three (or four if we count bonus) array of cards all on the same level

I think the structure could be optimized a bit to separate the main deck properties from the list of cards themselves, as in

    "code": "C20",
    "name": "Commander 2020 Deck Whatever",
    "cards": {
        "mainboard": [
            {
                Count/IsFoil/UUID
            },
            ....
        ]
        "sideboard": [
            {
                Count/IsFoil/UUID
            },
            ....
        ]
    }

In this way third party users can unmarshal cards in a dictionary and map, and just update the list of key present instead of hardcoding a new field. This also has the advantage of removing unused fields in case sideboard or other elements are empty

what do you think?