Add Factoriopedia Recipe Category Group prototype

[PennyJim]

I'm not sold on the name I made up for it, but I would like to be able to create our own recipe groups just like the "Recycling recipes" group

It would really just be the UtilityConstants::factoriopedia_recycling_recipe_categories promoted to a full prototype.

Edit: I realize I forgot to describe the definitions. It would be a new category prototype that the recipe categories point to. Just like groups and subgroups.

[protocol_1903]

+1

[Galdoc]

+1

[Osmo]

+1