fix(core): Updates expansion and map configurations (fixes map issues) (#570)

- [X] Adds question about expansion at start of server
- [X] Adds question about client version to determine old have and map diffs
- [X] Adds config setting "maps.enablePre6000Trammel"
- [X] Rearranges some of the loading order.
- [X] Added support for deserializing nullable enums from json

TODO:
Expand the nullable enums deserialization factory to work with any type by pulling the factory and creating an instance of the converter.

Projects/Server/Network/Packets/OutgoingGumpPackets.cs

@@ -74,7 +74,7 @@ namespace Server.Network
             if (error != ZlibError.Okay)
             {
                 Utility.PushColor(ConsoleColor.Red);
-                Console.WriteLine("Core: Gump compression failed {0}", error);
+                Core.WriteConsoleLine($"Gump compression failed {error}");
                 Utility.PopColor();
 
                 writer.Write(4);