Core/PacketIO: Add some missing 11.0 packet bits

Port From (https://github.com/TrinityCore/TrinityCore/commit/b6b2cdcce0a51434625fff114b74b45cac04fc46)

Source/Game/Networking/Packets/LootPackets.cs

@@ -37,6 +37,7 @@ namespace Game.Networking.Packets
             _worldPacket.WriteInt32(Currencies.Count);
             _worldPacket.WriteBit(Acquired);
             _worldPacket.WriteBit(AELooting);
+            _worldPacket.WriteBit(SuppressError);
             _worldPacket.FlushBits();
 
             foreach (LootItemData item in Items)
@@ -63,6 +64,7 @@ namespace Game.Networking.Packets
         public List<LootCurrency> Currencies = new();
         public bool Acquired;
         public bool AELooting;
+        public bool SuppressError; // Hides error from UI
     }
 
     class LootItemPkt : ClientPacket

Source/Game/Networking/Packets/PartyPackets.cs

@@ -90,6 +90,7 @@ namespace Game.Networking.Packets
             _worldPacket.WriteBit(AllowMultipleRoles);
             _worldPacket.WriteBit(QuestSessionActive);
             _worldPacket.WriteBits(InviterName.GetByteCount(), 6);
+            _worldPacket.WriteBit(Unused1102);
 
             InviterRealm.Write(_worldPacket);
 
@@ -110,6 +111,7 @@ namespace Game.Networking.Packets
         public bool MustBeBNetFriend;
         public bool AllowMultipleRoles;
         public bool QuestSessionActive;
+        public bool Unused1102;
         public ushort Unk1;
 
         public bool CanAccept;