Revert "All the formatting" (fixes #24)

This reverts commit 6b1516f0334aef15118dab2f5790969aa27c3807.

Conflicts:

	src/main/java/seprhou/gui/AbstractScreen.java
	src/main/java/seprhou/gui/Assets.java
	src/main/java/seprhou/gui/AtcGame.java
	src/main/java/seprhou/gui/ConcreteAircraft.java
	src/main/java/seprhou/gui/Constants.java
	src/main/java/seprhou/gui/ControlPanel.java
	src/main/java/seprhou/gui/GameArea.java
	src/main/java/seprhou/gui/GameOverScreen.java
	src/main/java/seprhou/gui/GameScreen.java
	src/main/java/seprhou/gui/HighScoresScreen.java
	src/main/java/seprhou/gui/Main.java
	src/main/java/seprhou/gui/MenuScreen.java
	src/main/java/seprhou/gui/OptionsScreen.java
	src/main/java/seprhou/gui/package-info.java
	src/main/java/seprhou/logic/Aircraft.java
	src/main/java/seprhou/logic/Airspace.java
	src/main/java/seprhou/logic/AirspaceObject.java
	src/main/java/seprhou/logic/CollisionWarning.java
	src/main/java/seprhou/logic/FlightPlan.java
	src/main/java/seprhou/logic/FlightPlanGenerator.java
	src/main/java/seprhou/logic/Rectangle.java
	src/main/java/seprhou/logic/Utils.java
	src/main/java/seprhou/logic/Vector2D.java
	src/test/java/seprhou/logic/AircraftTest.java
	src/test/java/seprhou/logic/AirspaceObjectTest.java
	src/test/java/seprhou/logic/AirspaceTest.java
	src/test/java/seprhou/logic/CollisionWarningTest.java
	src/test/java/seprhou/logic/FlightPlanGeneratorTest.java
	src/test/java/seprhou/logic/IsCloseToFloat.java
	src/test/java/seprhou/logic/RectangleTest.java
	src/test/java/seprhou/logic/UtilsTest.java
	src/test/java/seprhou/logic/Vector2DTest.java
Refactored ConcreteAircraft to simplify aircraft drawing

- Extracted the drawing method out to reduce code duplication
- Simplified SHADOW_DIRECTION construction using Vector2D.fromPolar
Refactored ControlPanel to reduce code duplication in constructor
Refactored menu + options screen init code

- Moved all the common button layout code into a new ButtonLayoutHelper class
Move AbstractScreen ESC key code above screen clear

- This prevents the flicker problem when pressing the ESC key
  caused by the game having a black screen for one frame.
Remove dead code in AirspaceObject
Made FlightPlan immutable again
Make landed planes drawing code neater
Move plane drawing code within clipping region (fixes #21)
Remove obsolete waypoint skipping test

- Test is obsolete since waypoints cannot be skipped at all anymore
Merge branch 'code-prepare'