• Rimworld 1.6 support.

• Include the `Defs` directory in the build

• Added the ability to define what a nutrient paste dispenser dispenses using XML alone. See README for more details.

* Added a patch for a bug in RimWorld where if you have dispensers without hoppers or without a way to fill those hoppers, pawns can sometimes end up choosing one that isn't actually usable, and if this happens, they won't eat anything at all, despite needing to.

* Need to patch ThingListGroupHelper.Includes as well, which is involved in deciding what is a food source.

First implementation of the mod.