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/Server/Network/Packet.cs

@@ -22,7 +22,7 @@ namespace Server.Network
 
             if (Core.Profiling)
             {
-                var prof = PacketSendProfile.Acquire(GetType());
+                var prof = PacketSendProfile.Acquire(PacketID);
                 prof.Increment();
             }
         }
@@ -37,7 +37,7 @@ namespace Server.Network
 
             if (Core.Profiling)
             {
-                var prof = PacketSendProfile.Acquire(GetType());
+                var prof = PacketSendProfile.Acquire(PacketID);
                 prof.Increment();
             }
         }