ZENGINE: Create method for converting image space to working window space
ZENGINE: Create method for clipping a rect to the working window
ZENGINE: Create method for transposing a surface
ZENGINE: Let Rlf animations output Surfaces instead of uint16 arrays
ZENGINE: Clip animations to the working window
ZENGINE: Add a debug assert to make sure we're not trying to render ouside the working window
ZENGINE: Update LeverControl to use the new RlfAnimation outputs