Created classes Display and Game to handle a LWJGL window with OpenGL content
Changed OpenGL initialization code (2D optimized). Global positioning works with dot coordinates now.
Easy handling of display settings thanks to the new DisplaySettings class
Add frame rate to DisplaySettings class
Create GameScene class to handle object drawing
Create GameObject class to handle game objects
Create default values for GameScene and GameObject
Revise GameScene default screen
Create default scene with engine name as background
(animated) texture and solid are available: Create classes Texture and SolidColor