Core/Misc: Reduce number of player spec hardcoded checks

Port From (https://github.com/TrinityCore/TrinityCore/commit/054723241eaf1abe7d45a96460e84b9ff113ffb2)

Source/Game/DataStorage/DB2Manager.cs

@@ -216,7 +216,7 @@ namespace Game.DataStorage
                 //ASSERT(chrSpec.OrderIndex < MAX_SPECIALIZATIONS);
 
                 uint storageIndex = chrSpec.ClassID;
-                if (chrSpec.Flags.HasAnyFlag(ChrSpecializationFlag.PetOverrideSpec))
+                if (chrSpec.GetFlags().HasFlag(ChrSpecializationFlag.PetOverrideSpec))
                 {
                     //ASSERT(!chrSpec.ClassID);
                     storageIndex = (int)Class.Max;

Source/Game/DataStorage/Structs/C_Records.cs

@@ -301,12 +301,15 @@ namespace Game.DataStorage
         public byte OrderIndex;
         public sbyte PetTalentType;
         public sbyte Role;
-        public ChrSpecializationFlag Flags;
+        public uint Flags;
         public int SpellIconFileID;
         public sbyte PrimaryStatPriority;
         public int AnimReplacements;
         public uint[] MasterySpellID = new uint[PlayerConst.MaxMasterySpells];
 
+        public ChrSpecializationFlag GetFlags() { return (ChrSpecializationFlag)Flags; }
+        public ChrSpecializationRole GetRole() { return (ChrSpecializationRole)Role; }
+
         public bool IsPetSpecialization()
         {
             return ClassID == 0;