#458 Crime scene game requires sound.

core/src/cz/nic/tablexia/game/games/crime_scene/CrimeSceneGame.java

@@ -169,6 +169,11 @@ public class CrimeSceneGame extends AbstractTablexiaGame<CrimeSceneGameState> {
         getStage().clear();
     }
 
+    @Override
+    public boolean isSoundMandatory() {
+        return true;
+    }
+
     @Override
     protected void screenResized(int width, int height) {
        setUpSizeAndPositionOfComponents();