Feature/com/server multicast user added to user list

Concerns about where to put Interface implementations

src/baleine/common/interfaces/client/ComToDataImpl.java

 package baleine.common.interfaces.client;
 
+import baleine.client.network.MessageController;
+import baleine.client.network.messages.clientToServer.LoginUserToServerMessage;
 import baleine.common.dataModel.*;
 
 import java.util.ArrayList;
@@ -36,8 +38,9 @@ public class ComToDataImpl implements IComToData {
 
     @Override
     public void addNewUser(UserLight user) {
-        // TODO Auto-generated method stub
-
+        MessageController mc = MessageController.getInstance();
+        LoginUserToServerMessage message = new LoginUserToServerMessage(user);
+        mc.sendLoginUserToServer(message);
     }
 
     @Override