wip: implement post turn handling

src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameStateManager.java

@@ -45,6 +45,14 @@ class GameStateManager {
         return true;
     }
 
+    /**
+     * Handles events that happen after a turn phase.
+     * @return The optionally resulting {@link Event}s
+     */
+    public Event[] checkPostPhase() {
+        return (Event[])GameLogic.checkTurnEnd(state).toArray();
+    }
+
     /**
      * Applies an array of {@link Event}s to the game state.
      * @param events The events to apply