added leave button logic to interrupt state

Projekte/mdga/model/src/main/java/pp/mdga/client/InterruptState.java

@@ -1,7 +1,9 @@
 package pp.mdga.client;
 
 import pp.mdga.message.client.ForceContinueGameMessage;
+import pp.mdga.message.client.LeaveGameMessage;
 import pp.mdga.message.server.ResumeGameMessage;
+import pp.mdga.notification.StartDialogNotification;
 
 public class InterruptState extends ClientState {
 
@@ -61,6 +63,13 @@ public void selectResume() {
         }
     }
 
+    @Override
+    public void selectLeave() {
+        logic.send(new LeaveGameMessage());
+        logic.addNotification(new StartDialogNotification());
+        logic.setState(logic.getDialogs());
+    }
+
     /**
      * The server resumes the game
      *