Add WithHarvesterSpriteBody

And move PrefixByFullness there.
Also put it into Mods.Cnc, as RA is the only shipping mod
using this.

OpenRA.Mods.Common/UpdateRules/Rules/20190314/SplitHarvesterSpriteBody.cs

@@ -0,0 +1,64 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2019 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;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace OpenRA.Mods.Common.UpdateRules.Rules
+{
+	public class SplitHarvesterSpriteBody : UpdateRule
+	{
+		public override string Name { get { return "Split fullness display from WithHarvestAnimation to new WithHarvesterSpriteBody"; } }
+		public override string Description
+		{
+			get
+			{
+				return "WithHarvestAnimation.PrefixByFullness logic was moved to a dedicated WithHarvesterSpriteBody.";
+			}
+		}
+
+		readonly List<Tuple<string, string>> fullnessPrefixes = new List<Tuple<string, string>>();
+
+		public override IEnumerable<string> AfterUpdate(ModData modData)
+		{
+			var message = "PrefixByFullness has been removed from WithHarvestAnimation.\n"
+				+ "To display fullness levels, use the new WithHarvesterSpriteBody\n"
+				+ "to switch between separate image sprites instead (see RA mod harvester for reference).\n"
+				+ "The following places most likely need manual changes:\n"
+				+ UpdateUtils.FormatMessageList(fullnessPrefixes.Select(n => n.Item1 + " (" + n.Item2 + ")"));
+
+			if (fullnessPrefixes.Any())
+				yield return message;
+
+			fullnessPrefixes.Clear();
+		}
+
+		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+		{
+			var harvAnim = actorNode.LastChildMatching("WithHarvestAnimation");
+			if (harvAnim != null)
+			{
+				var fullnessPrefix = harvAnim.LastChildMatching("PrefixByFullness");
+
+				// If PrefixByFullness is empty, no changes are needed.
+				if (fullnessPrefix == null)
+					yield break;
+
+				harvAnim.RemoveNode(fullnessPrefix);
+
+				fullnessPrefixes.Add(Tuple.Create(actorNode.Key, actorNode.Location.Filename));
+			}
+
+			yield break;
+		}
+	}
+}