Add player authentication backend.

OpenRA.Game/PlayerProfile.cs

@@ -0,0 +1,24 @@
+#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
+
+namespace OpenRA
+{
+	public class PlayerProfile
+	{
+		public readonly string Fingerprint;
+		public readonly string PublicKey;
+		public readonly bool KeyRevoked;
+
+		public readonly int ProfileID;
+		public readonly string ProfileName;
+		public readonly string ProfileRank = "Registered Player";
+	}
+}