Commodities

The goods a market trades.

CommodityCatalogue holds the standard commodities and the rare ones a single station sells, each a Commodity carrying its Frontier symbol, its display name and its CommodityCategory.

A lookup takes a name or a symbol in any casing, with any surrounding whitespace, and answers null for one no record carries. CommodityCategories reads and writes the in-game spelling of a category, which is what a market panel and a journal line both use.