Make microwave use recipe make_food proc.

[alfalfascout]

What Does This PR Do

Changes kitchen_machine logic to use a recipe datum's make_food() proc instead of rolling its own. Also, changes the base kitchen_machine's description to ABSTRACT_TYPE_DESC while I'm in the neighborhood.

Why It's Good For The Game

I want to add microwave recipes that do something interesting, and it's kind of a headache when the microwave ignores the recipe's make procs.

Testing

Microwaved a donk pocket and received a warm donk pocket. Remicrowaved a previously warmed donk pocket and received a warm donk pocket. Microwaved a brain and it disappeared. These are the only 3 recipes that use this logic.

Declaration

• I confirm that I either do not require pre-approval for this PR, or I have obtained such approval and have included a screenshot to demonstrate this below.

Changelog

NPFC