Core/Spells: Load spell label data for future use

Port From (https://github.com/TrinityCore/TrinityCore/commit/e1f3f1254c3214c0a5b71db6de33f8900903d314)

Source/Game/DataStorage/Structs/S_Records.cs

@@ -359,6 +359,13 @@ namespace Game.DataStorage
         public byte[] Logic = new byte[5];
     }
 
+    public sealed class SpellLabelRecord
+    {
+        public uint Id;
+        public uint LabelID;
+        public int SpellID;
+    }
+
     public sealed class SpellLearnSpellRecord
     {
         public uint Id;