Randomly spawing of Player and Opponent
Possiblity of selecting random arrows in ArrowSelectionScreenPreSet
It is archieved with the help of a button "Zufälliger Pfeil" as well as pressing "z".
 GameOverScreen smooths in as the world smooths out.
 This looks more fluently than before. Additionally I improved some "unbeatifull" parts in ArrowSelectionScreenPreSet & PreWindowScreen (saving the color in the class, and not instancing it with every draw-call).
 Notice that you can fill the arrowList completly with pressing any key (exept "b" and "z"), to get forward to GameScreen faster.