Give EngineerRepair(able) more generic names

OpenRA.Mods.Common/Traits/InstantlyRepairable.cs

@@ -0,0 +1,32 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * 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 OpenRA.Primitives;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	public class InstantlyRepairType { }
+
+	[Desc("Eligible for instant repair.")]
+	public class InstantlyRepairableInfo : ConditionalTraitInfo
+	{
+		[Desc("Actors with these Types under EngineerRepair trait can repair me.")]
+		public readonly BitSet<InstantlyRepairType> Types = default;
+
+		public override object Create(ActorInitializer init) { return new InstantlyRepairable(this); }
+	}
+
+	public class InstantlyRepairable : ConditionalTrait<InstantlyRepairableInfo>
+	{
+		public InstantlyRepairable(InstantlyRepairableInfo info)
+			: base(info) { }
+	}
+}