Core/PacketIO: Implemented and enabled SMSG_STOP_SPEAKERBOT_SOUND

Port From (https://github.com/TrinityCore/TrinityCore/commit/3f8f8674259b455e47b1456dc0246c1f6758fc74)

Source/Game/Entities/Object/WorldObject.cs

@@ -2953,6 +2953,14 @@ namespace Game.Entities
                 SendMessageToSet(playSpeakerBoxSound, true);
         }
 
+        void StopDistanceSound(Player target = null)
+        {
+            if (target != null)
+                target.SendPacket(new StopSpeakerbotSound(GetGUID()));
+            else
+                SendMessageToSet(new StopSpeakerbotSound(GetGUID()), true);
+        }
+
         public void PlayDirectSound(uint soundId, Player target = null, uint broadcastTextId = 0)
         {
             PlaySound sound = new(GetGUID(), soundId, broadcastTextId);

Source/Game/Networking/Packets/MiscPackets.cs

@@ -938,6 +938,21 @@ namespace Game.Networking.Packets
         public uint SoundKitID;
     }
 
+    class StopSpeakerbotSound : ServerPacket
+    {
+        ObjectGuid SourceObjectGUID;
+
+        public StopSpeakerbotSound(ObjectGuid sourceObjectGUID) : base(ServerOpcodes.StopSpeakerbotSound)
+        {
+            SourceObjectGUID = sourceObjectGUID;
+        }
+
+        public override void Write()
+        {
+            _worldPacket.WritePackedGuid(SourceObjectGUID);
+        }
+    }
+
     class OpeningCinematic : ClientPacket
     {
         public OpeningCinematic(WorldPacket packet) : base(packet) { }