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/Server.Tests/Network/Packets/Old/Outgoing/AccountPacketTests.cs

@@ -1,11 +1,7 @@
 using System;
 using System.Buffers;
-using System.Collections.Generic;
-using System.IO.Pipelines;
 using System.Linq;
 using System.Net;
-using Microsoft.AspNetCore.Connections;
-using Microsoft.AspNetCore.Http.Features;
 using Server.Accounting;
 using Server.Network;
 using Xunit;
@@ -111,12 +107,7 @@ namespace Server.Tests.Network.Packets
 
             var account = new TestAccount(new[] { firstMobile, null, null, null, null });
 
-            var ns = new NetState(
-                new TestConnectionContext
-                {
-                    RemoteEndPoint = IPEndPoint.Parse("127.0.0.1")
-                }
-            )
+            var ns = new NetState(null)
             {
                 Account = account,
                 ProtocolChanges = protocolChanges
@@ -653,13 +644,5 @@ namespace Server.Tests.Network.Packets
 
             public int CompareTo(TestAccount other) => other == null ? 1 : Username.CompareTo(other.Username);
         }
-
-        internal class TestConnectionContext : ConnectionContext
-        {
-            public override string ConnectionId { get; set; }
-            public override IFeatureCollection Features { get; }
-            public override IDictionary<object, object> Items { get; set; }
-            public override IDuplexPipe Transport { get; set; }
-        }
     }
 }