compat: Added delegating Graphics class
compat: Use compat.Graphics in Compass class
compat: Use compat.Graphics in DataSlider class
compat: Use compat.Graphics in PolyLine and Object3d classes
compat: Added delegating Color class
compat: Added delegating Font class
cleanup: Optimized imports
Merge branch 'compat'

Conflicts:
	src/main/java/org/flightclub/ModelCanvas.java