Add graphics-transform adapter layer

[cromo]

It's nice to have every layer that draws graphics to draw at the origin at a standard size so that they can easily be moved/attached to other locations or objects. In order to capture transformations of this kind and make them easy to carry around and swap out, we could have a graphics-transform adapter. It would:

• Pass through all callbacks except draw
• Accept a function that will perform the transform
• When drawing, it
  1. Pushes the current transform on the stack
  2. Calls the passed function to perform the transform
  3. Passes through the callback to the nested layer
  4. Pops the transform stack
• It should perform error checking around the provided functions to ensure that the transform stack doesn't grow unbounded