Moves some misc traits/activities to Mods.Common, moves some RA traits into the Traits folder

OpenRA.Mods.RA/Traits/Cloneable.cs

@@ -0,0 +1,24 @@
+#region Copyright & License Information
+/*
+  * Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
+  * This file is part of OpenRA, which is free software. It is made
+  * available to you under the terms of the GNU General Public License
+  * as published by the Free Software Foundation. For more information,
+  * see COPYING.
+  */
+#endregion
+
+using System;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA.Traits
+{
+	[Desc("Actors with the \"ClonesProducedUnits\" trait will produce a free duplicate of me.")]
+	public class CloneableInfo : TraitInfo<Cloneable>
+	{
+		[Desc("This unit's cloneable type is:")]
+		public readonly string[] Types = { };
+	}
+
+	public class Cloneable { }
+}