Core/Summons: Handle summons using SummonProperties.Control type 5 as vehicles

Port From (https://github.com/TrinityCore/TrinityCore/commit/23bb1a56b74191e131e41ad25edbe40ee4e76a96)

Source/Framework/Constants/ObjectConst.cs

@@ -130,9 +130,8 @@ namespace Framework.Constants
         Ally = 1,
         Pet = 2,
         Puppet = 3,
-        Vehicle = 4,
+        PossessedVehicle = 4,
-        Unk = 5  // as of patch 3.3.5a only Bone Spike in Icecrown Citadel
+        Vehicle = 5  // Wild, but Ride Spell will be cast
-        // uses this category
     }
 
     public enum SummonTitle

Source/Game/AI/CoreAI/CreatureAI.cs

@@ -150,7 +150,6 @@ namespace Game.AI
                     return true;
                 case SummonCategory.Wild:
                 case SummonCategory.Ally:
-                case SummonCategory.Unk:
                     if (properties.HasFlag(SummonPropertiesFlags.JoinSummonerSpawnGroup))
                         return true;
                     switch (properties.Title)

Source/Game/Entities/Transport.cs

@@ -446,12 +446,12 @@ namespace Game.Entities
                     case SummonCategory.Puppet:
                         mask = UnitTypeMask.Puppet;
                         break;
+                    case SummonCategory.PossessedVehicle:
                     case SummonCategory.Vehicle:
                         mask = UnitTypeMask.Minion;
                         break;
                     case SummonCategory.Wild:
                     case SummonCategory.Ally:
-                    case SummonCategory.Unk:
                     {
                         switch (properties.Title)
                         {

Source/Game/Maps/Map.cs

@@ -3711,12 +3711,12 @@ namespace Game.Maps
                     case SummonCategory.Puppet:
                         mask = UnitTypeMask.Puppet;
                         break;
+                    case SummonCategory.PossessedVehicle:
                     case SummonCategory.Vehicle:
                         mask = UnitTypeMask.Minion;
                         break;
                     case SummonCategory.Wild:
                     case SummonCategory.Ally:
-                    case SummonCategory.Unk:
                     {
                         switch (properties.Title)
                         {

Source/Game/Spells/SpellEffects.cs

@@ -1512,7 +1512,6 @@ namespace Game.Spells
             {
                 case SummonCategory.Wild:
                 case SummonCategory.Ally:
-                case SummonCategory.Unk:
                     if (properties.HasFlag(SummonPropertiesFlags.JoinSummonerSpawnGroup))
                     {
                         SummonGuardian(effectInfo, entry, properties, numSummons, privateObjectOwner);
@@ -1614,6 +1613,7 @@ namespace Game.Spells
                     summon = unitCaster.GetMap().SummonCreature(entry, destTarget, properties, duration, unitCaster, m_spellInfo.Id, 0, privateObjectOwner);
                     break;
                 }
+                case SummonCategory.PossessedVehicle:
                 case SummonCategory.Vehicle:
                 {
                     if (unitCaster == null)