Move 20171014-20180218 update rules to subfolder

Also synced order of appearance with order they're applied in when running the full update path.

OpenRA.Mods.Common/UpdateRules/Rules/20171014/AddNukeLaunchAnimation.cs

@@ -0,0 +1,48 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2018 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using System.Linq;
+
+namespace OpenRA.Mods.Common.UpdateRules.Rules
+{
+	public class AddNukeLaunchAnimation : UpdateRule
+	{
+		public override string Name { get { return "Add 'WithNukeLaunchAnimation' and remove 'NukePower.ActivationSequence'"; } }
+		public override string Description
+		{
+			get
+			{
+				return "The 'ActivationSequence' property has been removed.\n" +
+					"Use the new 'WithNukeLaunchAnimation' trait instead.";
+			}
+		}
+
+		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+		{
+			var nukePowers = actorNode.ChildrenMatching("NukePower").ToList();
+			foreach (var nuke in nukePowers)
+			{
+				var activation = nuke.LastChildMatching("ActivationSequence");
+				if (activation == null)
+					continue;
+
+				var sequence = activation.NodeValue<string>();
+				nuke.RemoveNode(activation);
+				actorNode.AddNode("WithNukeLaunchAnimation", "");
+				if (sequence != "active")
+					actorNode.LastChildMatching("WithNukeLaunchAnimation").AddNode("Sequence", sequence);
+			}
+
+			yield break;
+		}
+	}
+}