menuinformation site - add second action

inherit lcd Wrapper

src/menuControl.cpp

@@ -20,3 +20,10 @@ void MenuControl::print(String lineOne, String lineTwo) const {
         lcd->print(lineTwo.c_str());
     }
 }
+
+void MenuControl::setParentMenu(MenuControl* menu) {
+    this->parentMenu = menu;
+    DisplayWrapper* lcd = this->parentMenu->getLcd();
+    if (lcd)
+        this->lcd = lcd;
+}