Ask for consent to terms and conditions if required

src/controller.h

@@ -107,6 +107,7 @@ Q_SIGNALS:
     void passwordStatus(Controller::PasswordStatus _t1);
     void showWindow();
     void openRoom(NeoChatRoom *room);
+    void userConsentRequired(QUrl url);
 
 public Q_SLOTS:
     void logout(Quotient::Connection *conn, bool serverSideLogout);