ATV-TW: a trait (and future ancillary) validator for RTW/M2TW

[Squid]

Eventually, but first I've got to go do the work on Roma Surrectum traits/ancillaries I've put off while working on the RTW version, and I still want to make those modifications to make the RTW version more customizable. There's also the problem that I don't own either M2TW or Kingdoms, so I have no way of getting a feel for the ins and outs of the files. I thought that M2TW files were almost identical to RTW, so does my current version work?

A couple of other improvements with the new version:

UI Improvements

• Trigger tabs are now listing items by trigger, instead of by trait/ancillary
• Double clicking on a trait/ancillary on the trigger tab will bring up the corresponding trait/ancillary

I'm sure there are other goodies included that I've forgotten I added.