updates:
- everything is now screen space, which required me to make a bunch of new gizmo system features
- axis used now display the brick size (in the same units the brick names for that type use - plates use plate sizing notation, micros use raw units)
- line no longer dotted (didn't work very well in screen space) and fade out effect at ends got removed in favor of the line just being between the handles - much more efficient to draw
now ain't that better than having the numbers in the HUD?
