moved main map drawing

Demo:
-reduced draw()
+removed airport drawing
+removed compass drawing
-removed drawMap()
+removed call in draw()

GameWindow:
-added manualOverrideBox
+position of button relative to gameArea calculated in setAreas()
+initialised in constructor
+manualOverrideButton initialised using manualOverrideBox
-draw modified
+fixed score, planeInfo, altimeter, airportControl, orders to draw
relative to x,y, rather than gameArea
+fixed gameArea bounding rectangle coordinates
+removed background drawing for game
+added manual override button drawing
+added compass drawing
-added drawMap()
+added call in draw()
+included background drawing
-added drawRect() as a wrapper for graphics.rectangle()
-modified setAreas()