implemented highscore functionality

src/main/java/Gui/GameGui.java

@@ -20,6 +20,7 @@ public static JLabel Headline,QuestionLabel,WinningLabel, LosingLabel, ShowQuest
 public static JButton AnswersBtn1,AnswersBtn2,AnswersBtn3,AnswersBtn4,RestartBtn,RestartBtn1,ClosingBtn;
 public static int questionNr = 0;
 public static int counter = 1;
+public static int highScore = 0;
 GridLayout grid;
 GridBagConstraints gbc;
 
@@ -175,7 +176,10 @@ GridBagConstraints gbc;
 	
 	@Override
 	public void highScore() {
-		HighScoreLabel = new JLabel("Hier steht der Highscore");
+		if (highScore < questionNr) {
+			highScore = questionNr;
+		}
+		HighScoreLabel = new JLabel("Dein Highscore ist: Frage " + highScore);
 		LosingPanel.add(HighScoreLabel);
 	}