Register definition-local sounds into definition namespace (id::Soundname) #1185.

Also move all object sounds to global Sound.ocg so they are still played.

This is to prevent naming collisions. All sounds are moved because otherwise all scripts would have to be adjusted. Also, the distinction between sounds in definitions and sounds in Sound.ocg was rather arbitrary.

It will also ensure most sounds are reloaded when sound is turned off temporarily, although that should better be fixed properly.

planet/Missions.ocf/FightForGidl.ocs/Homebase.ocd/BuyMenu.ocd/Script.c

@@ -192,13 +192,13 @@ public func ToggleVisibility(int player, ...)
 	{
 		// Close menu
 		menu.Visibility = VIS_None;
-		Sound("CloseBuyMenu", true, nil, GetOwner());
+		Sound("GUI_BuyMenu::CloseBuyMenu", true, nil, GetOwner());
 	}
 	else
 	{
 		// Open menu
 		menu.Visibility = VIS_Owner;
-		Sound("OpenBuyMenu", true, nil, GetOwner());
+		Sound("GUI_BuyMenu::OpenBuyMenu", true, nil, GetOwner());
 	}
 	return true;
 }