Core/DataStores: Updated db2 structures to 8.3.0

Port From (https://github.com/TrinityCore/TrinityCore/commit/90628b7d29e041310abc25438f219a0c73c41bae)

Source/Game/DataStorage/Structs/C_Records.cs

@@ -148,6 +148,7 @@ namespace Game.DataStorage
         public int FemaleSkeletonFileDataID;
         public int MaleSkeletonFileDataID;
         public int HelmVisFallbackRaceID;
+        public int TransmogrifyDisabledSlotMask;
         public ushort FactionID;
         public ushort CinematicSequenceID;
         public short ResSicknessSpellID;
@@ -222,6 +223,7 @@ namespace Game.DataStorage
     {
         public uint Id;
         public int ExpectedStatModID;
+        public int MythicPlusSeasonID;
         public uint ContentTuningID;
     }
 
@@ -384,6 +386,8 @@ namespace Game.DataStorage
         public sbyte Quality;
         public int FactionID;
         public int ItemGroupSoundsID;
+        public int ConvertToPlayerExperience;
+        public int PlayerConditionID;
     }
 
     public sealed class CurveRecord

Source/Game/DataStorage/Structs/I_Records.cs

@@ -63,7 +63,6 @@ namespace Game.DataStorage
     {
         public uint Id;
         public byte DisplayType;
-        public int SubclassID;
         public uint ItemDisplayInfoID;
         public int DefaultIconFileDataID;
         public int UiOrder;

Source/Game/DataStorage/Structs/M_Records.cs

@@ -140,6 +140,8 @@ namespace Game.DataStorage
         public uint PlayerConditionID;
         public float MountFlyRideHeight;
         public int UiModelSceneID;
+        public int MountSpecialRiderAnimKitID;
+        public int MountSpecialSpellVisualKitID;
 
         public bool IsSelfMount() { return (Flags & MountFlags.SelfMount) != 0; }
     }

Source/Game/DataStorage/Structs/S_Records.cs

@@ -537,11 +537,11 @@ namespace Game.DataStorage
     public sealed class SpellVisualKitRecord
     {
         public uint Id;
-        public int Flags;
         public sbyte FallbackPriority;
-        public uint FallbackSpellVisualKitId;
+        public int FallbackSpellVisualKitId;
         public ushort DelayMin;
         public ushort DelayMax;
+        public int[] Flags = new int[2];
     }
 
     public sealed class SpellXSpellVisualRecord

Source/Game/DataStorage/Structs/U_Records.cs

@@ -34,6 +34,7 @@ namespace Game.DataStorage
         public int VisibilityPlayerConditionID;
         public sbyte HelpTextPosition;
         public int BkgAtlasID;
+        public int AlternateUiMapGroup;
     }
 
     public sealed class UiMapAssignmentRecord