Add hijackable truck to Allies 04

OpenRA.Mods.RA/Spy.cs

@@ -1,4 +1,4 @@
-#region Copyright & License Information
+#region Copyright & License Information
 /*
  * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
  * This file is part of OpenRA, which is free software. It is made
@@ -155,4 +155,7 @@ namespace OpenRA.Mods.RA
 
 	class IgnoresDisguiseInfo : TraitInfo<IgnoresDisguise> {}
 	class IgnoresDisguise {}
+
+	class DontDestroyWhenInfiltratingInfo : TraitInfo<DontDestroyWhenInfiltrating> { }
+	class DontDestroyWhenInfiltrating { }
 }