ctrl+g kinda working, but login/logout events still need a remake

modules/mainmenu/mainmenu.lua

@@ -0,0 +1,22 @@
+MainMenu = { }
+
+-- private variables
+local mainMenu
+
+-- public functions
+function MainMenu.create()
+  mainMenu = UI.loadAndDisplay("/mainmenu/ui/mainmenu.otui")
+end
+
+function MainMenu.destroy()
+  mainMenu:destroy()
+  mainMenu = nil
+end
+
+function MainMenu.hide()
+  mainMenu:hide()
+end
+
+function MainMenu.show()
+  mainMenu:show()
+end