Excess Animals Sold

This mod changes animal husbandry placeables so they sell baby animals when the husbandry is full, rather than deleting them.

For example, suppose your cowshed has a capacity of 20 cows and contains 18 cows.
If 4 of those cows are ready to reproduce, then upon reproducing 2 calves will be added to the shed, and 2 calves will be sold.