split render building/overlay and play sound for charge

to add the Tiberian Sun Nod Obelisk

tick slightly faster

tweak the local offsets

OpenRA.Mods.Common/TraitsInterfaces.cs

@@ -28,6 +28,7 @@ namespace OpenRA.Mods.Common.Traits
 	}
 
 	public interface INotifyAttack { void Attacking(Actor self, Target target, Armament a, Barrel barrel); }
+	public interface INotifyCharging { void Charging(Actor self, Target target); }
 	public interface INotifyChat { bool OnChat(string from, string message); }
 	public interface INotifyParachuteLanded { void OnLanded(); }
 	public interface IRenderActorPreviewInfo { IEnumerable<IActorPreview> RenderPreview(ActorPreviewInitializer init); }