Add starter lab tmx
Lab updates, some tiles still buggy
Add some enemies to lab map (Read details)

So the first map is now something I whipped up using the lab tileset
that Chi found. I really like how it looks, but Quintus or Tiled
likes to make things difficult.

Tiles weren't showing up in the collision layer, so I made a
background-obj layer below it, and then the tiles rendered fine.
Basically, background-obj is a redundant copy of collision, and
hopefully someone can figure out why they weren't rendering with just
the collision layer.

Otherwise, I think we have a nice tileset to work off now. Make sure we
give credit to the tilesheet maker at some point; don't want to get
sued.