tradestation interior model and textures

New interior for the tradestation, may still be a bit janky, but it's an improvement on the old one. :)

![pioneer 2014-01-03 13-43-28-05](https://f.cloud.github.com/assets/3170950/1839914/aeb53530-7487-11e3-9cf8-0a133916ffa4.png)