[CLOSED PR] Wig glue trait that allows mutantraces to wear hats and hair

[klushy225]

I agree that simply giving mutant races hair would be the best option. It would be much less janky than this, and the solution would be quite easy to implement. I only made this a trait as to appease those still on the fence, and maybe ease into mutantraces getting hair before making a full plunge into it. I could make a separate PR that straight up enables mutantrace hair as well, and have two concurrently running.