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/Items/Misc/BulletinBoards.cs

@@ -315,7 +315,7 @@ namespace Server.Items
                 }
             }
 
-            var subject = reader.ReadUTF8StringSafe(reader.ReadByte());
+            var subject = reader.ReadUTF8Safe(reader.ReadByte());
 
             if (subject.Length == 0)
             {
@@ -331,7 +331,7 @@ namespace Server.Items
 
             for (var i = 0; i < lines.Length; ++i)
             {
-                lines[i] = reader.ReadUTF8StringSafe(reader.ReadByte());
+                lines[i] = reader.ReadUTF8Safe(reader.ReadByte());
             }
 
             board.PostMessage(from, thread, subject, lines);