Replacing Networking (#271)

- [X] Removing Kestrel & Libuv
- [X] Cleaning up NetState
- [X] Removing System.IO.Pipelines
- [X] Cleaning up packet reading
- [X] Adds a maximum of 5000 sockets (configurable) to prevent OOM
- [X] Replaces the AsyncState with a thread-safe wrapped boolean called NetworkState
- [X] Removes Parallel.ForEach (no perf gain)
- [X] Removes custom houses compression on another thread
- [X] Test high load scenarios

Bumps release version

Projects/UOContent/Misc/Fastwalk.cs

@@ -29,7 +29,8 @@ namespace Server.Misc
         public static void OnFastWalk(FastWalkEventArgs e)
         {
             e.Blocked = true; // disallow this fastwalk
-            Console.WriteLine("Client: {0}: Fast movement detected (name={1})", e.NetState, e.NetState.Mobile.Name);
+            var state = e.NetState;
+            state.WriteConsole("Fast movement detected (name={0})", state.Mobile.Name);
         }
     }
 }