Merge remote-tracking branch 'origin/development' into development

Projekte/mdga/model/src/main/java/pp/mdga/server/ServerSender.java

@@ -21,4 +21,11 @@ public interface ServerSender {
      * @param message as the message which will be sent to all players as a ServerMessage.
      */
     void broadcast(ServerMessage message);
+
+    /**
+     * This method will be used to disconnect the client depending on the given id parameter.
+     *
+     * @param id as the connection id of the client as an Integer.
+     */
+    void disconnectClient(int id);
 }