Fixes #8012

Fixes issue #8012 by adding in a is food rotten check to the dissasembly
Bear in mind that there are folks whose digestive systems (whether through bionic enhancement or mutation) can get mileage from rotten food most of the time, safely eat rotten meat, or can ONLY eat things that most folks (snobs, I tell ye!) would call "rotten".  You should probably check for bio_digestion, SAPROVORE, and SAPROPHAGE before making the character go "Eww!".

Saprophages would go "Yum!".  ;-)