Move file system mounting into mod code.

OpenRA.Mods.Common/FileSystem/DefaultFileSystemLoader.cs

@@ -0,0 +1,27 @@
+#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 System.Collections.Generic;
+
+namespace OpenRA.Mods.Common.FileSystem
+{
+	public class DefaultFileSystemLoader : IFileSystemLoader
+	{
+		public readonly Dictionary<string, string> Packages = null;
+
+		public void Mount(OpenRA.FileSystem.FileSystem fileSystem, ObjectCreator objectCreator)
+		{
+			if (Packages != null)
+				foreach (var kv in Packages)
+					fileSystem.Mount(kv.Key, kv.Value);
+		}
+	}
+}