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/World/World.cs

@@ -657,12 +657,14 @@ namespace Server
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         public static void RemoveGuild(BaseGuild guild) => Guilds.Remove(guild.Serial);
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private static void WriteConsole(string message)
         {
             var now = DateTime.UtcNow;
             Console.Write("[{0} {1}] World: {2}", now.ToShortDateString(), now.ToLongTimeString(), message);
         }
 
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private static void WriteConsoleLine(string message)
         {
             var now = DateTime.UtcNow;