Lets talk about chairs

We’ve got a super duper old issue about chair sprites and adding new seats to the game:

I think this is something we definitely want. Despite it on the surface seeming pretty easy to accomplish, here’s a series of PRs that have addressed chairs, and have had various levels of acceptance. I want us to come up with what this issue really needs to be resolved, as well as I suppose any further chair related criteria we have for chairs in general.