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/Object Creation/Decorate.cs

@@ -5,6 +5,7 @@ using Server.Engines.Quests.Haven;
 using Server.Engines.Quests.Necro;
 using Server.Engines.Spawners;
 using Server.Items;
+using Server.Network;
 using Server.Utilities;
 
 namespace Server.Commands
@@ -27,6 +28,8 @@ namespace Server.Commands
 
             m_Mobile.SendMessage("Generating world decoration, please wait.");
 
+            NetState.FlushAll();
+
             Generate("Data/Decoration/Britannia", Map.Trammel, Map.Felucca);
             Generate("Data/Decoration/Trammel", Map.Trammel);
             Generate("Data/Decoration/Felucca", Map.Felucca);

Projects/UOContent/Commands/Object Creation/DecorateMag.cs

@@ -6,6 +6,7 @@ using Server.Engines.Quests.Haven;
 using Server.Engines.Quests.Necro;
 using Server.Engines.Spawners;
 using Server.Items;
+using Server.Network;
 using Server.Utilities;
 
 namespace Server.Commands
@@ -28,6 +29,8 @@ namespace Server.Commands
 
             m_Mobile.SendMessage("Generating world decoration, please wait.");
 
+            NetState.FlushAll();
+
             Generate("Data/Decoration/RuinedMaginciaTram", Map.Trammel);
             Generate("Data/Decoration/RuinedMaginciaFel", Map.Felucca);
 

Projects/UOContent/Commands/Object Creation/GenTeleporter.cs

@@ -4,6 +4,7 @@ using System.IO;
 using System.Text.Json.Serialization;
 using Server.Items;
 using Server.Json;
+using Server.Network;
 
 namespace Server.Commands
 {
@@ -68,6 +69,9 @@ namespace Server.Commands
             var from = e.Mobile;
 
             from.SendMessage("Generating teleporters, please wait.");
+
+            NetState.FlushAll();
+
             var c = new TeleportersCreator();
 
             if (!ProcessTeleporterData(from, c.CreateTeleporter))