[NKSP] [BH] Mentor knitting not showing up while teaching class

This is most likely due to the fact that sims were previously never able to multitask while knitting. They were never able to talk to any other sims or even listen to the radio (unless you clicked listen to radio first and then sat down to knit.)  Sims were also never able to interact with any other sim who was knitting.

I often used knitting as a way to just make a sim sit still for a while because they can't perform any other autonomous actions while knitting.