modules/menusystem:add batch management functions for sounds

gamecore/modules/menusystem/init.lua

@@ -144,6 +144,18 @@ end
 -- SOUND FUNCTIONS
 -- Add sounds to every menus
 
+function MenuSystem:setSoundFromSceneAssets(soundname)
+  for k,v in pairs(self.menus) do
+    v:setSoundFromSceneAssets(soundname)
+  end
+end
+
+function MenuSystem:setSound(soundasset)
+  for k,v in pairs(self.menus) do
+    v:setSound(soundasset)
+  end
+end
+
 -- UPDATE FUNCTIONS
 -- Update the menus of the menusystem