Trans Grosse and Ease of Use

For this update I added Trans Grosse, but more importantly added two new features:

1. You can now pull up a quick menu to select part variants if you click on the part's name (between the arrows).

2. You can now export a full set of frames as PNGs if you don't feel like cutting them out of the sprite sheet yourself.

I am currently working on a large overhaul for the next update, so it may be a while yet before more updates begin rolling through.