fix(core): Tightens the network stack (#479)

- [X] Removes network pause/resume
- [X] Adds back packet profiler
- [X] Adds state machine to keep track and trace netstates
- [X] Changes NetState.Running back to using an interlock exchange
- [X] Adds preliminary packet throttling support


### Packet Throttling
- `[GetThrottle <packetId>` to get the delay in milliseconds for that packet
- `[SetThrottle <packetId> <delay>` to set the delay in milliseconds for that packet
The settings are saved to `Configuration/throttles.json`

Projects/UOContent/Commands/Generic/Commands/Commands.cs

@@ -911,14 +911,13 @@ namespace Server.Commands.Generic
                 if (list.Count > 20)
                 {
                     CommandLogging.Enabled = false;
-                    NetState.Pause();
+                    NetState.FlushAll();
                 }
 
                 base.ExecuteList(e, list);
 
                 if (list.Count > 20)
                 {
-                    NetState.Resume();
                     flushToLog = true;
                     CommandLogging.Enabled = true;
                 }
@@ -1250,7 +1249,7 @@ namespace Server.Commands.Generic
 
                         AddResponse($"They have been {(m_Ban ? "banned" : "kicked")}.");
 
-                        targState.Disconnect();
+                        targState.Disconnect($"Banned by {from}.");
 
                         if (m_Ban)
                         {