Recipes asset

[ethteck]

Given the very data-driven nature of the cooking engine, it would be convenient to have the data instead be in a tool-editable format like json. We could create a tool to edit the json and then have something else that goes from json -> inc.c for compiling.

See src/world/area_mac/mac_02/npc/tayce_t.inc.c and DoubleRecipesMatrix, etc

[ethteck]

we can use ExtraDoubleRecipes for this too

[bates64]

For modding an important thing for me is that multiple 'recipe sets' can be loaded one after another, so we want to support asset_stack for this