Core/SAI: implement new smart actions to change AI Animkits and to enable/disable hover movement

Port From (https://github.com/TrinityCore/TrinityCore/commit/dde5a3e32645060fbcc4856770dfc6a0c43a3947)

Source/Framework/Constants/SmartAIConst.cs

@@ -391,6 +391,8 @@ namespace Framework.Constants
         PlaySpellVisualKit = 137, // spellVisualKitId, kitType (unknown values, copypaste from packet dumps), duration
         OverrideLight = 138,    // zoneId, overrideLightID, transitionMilliseconds
         OverrideWeather = 139,    // zoneId, weatherId, intensity
+        SetAIAnimKit = 140,    // DEPRECATED, DO REUSE (it was never used in any branch, treat as free action id)
+        SetHover = 141,    // 0/1
         CreateConversation = 143, // conversation_template.id
         SetImmunePC = 144,    // 0/1
         SetImmuneNPC = 145,    // 0/1

Source/Game/AI/SmartScripts/SmartAIManager.cs

@@ -1510,6 +1510,11 @@ namespace Game.AI
 
                     break;
                 }
+                case SmartActions.SetAIAnimKit:
+                {
+                    Log.outError(LogFilter.Sql, $"SmartAIMgr: Deprecated Event:({e}) skipped.");
+                    break;
+                }
                 case SmartActions.CreateConversation:
                 {
                     if (Global.ConversationDataStorage.GetConversationTemplate(e.Action.conversation.id) == null)
@@ -1599,6 +1604,7 @@ namespace Game.AI
                 case SmartActions.RemoveAllGameobjects:
                 case SmartActions.SpawnSpawngroup:
                 case SmartActions.DespawnSpawngroup:
+                case SmartActions.SetHover:
                 case SmartActions.AddToStoredTargetList:
                     break;
                 case SmartActions.BecomePersonalCloneForPlayer:
@@ -2654,6 +2660,9 @@ namespace Game.AI
         [FieldOffset(4)]
         public OverrideWeather overrideWeather;
 
+        [FieldOffset(4)]
+        public SetHover setHover;
+
         [FieldOffset(4)]
         public Evade evade;
 
@@ -3201,6 +3210,10 @@ namespace Game.AI
             public uint weatherId;
             public uint intensity;
         }
+        public struct SetHover
+        {
+            public uint enable;
+        }
         public struct Evade
         {
             public uint toRespawnPosition;

Source/Game/AI/SmartScripts/SmartScript.cs

@@ -2429,6 +2429,13 @@ namespace Game.AI
                     }
                     break;
                 }
+                case SmartActions.SetHover:
+                {
+                    foreach (WorldObject target in targets)
+                        if (IsUnit(target))
+                            target.ToUnit().SetHover(e.Action.setHover.enable != 0);
+                    break;
+                }
                 case SmartActions.PlaySpellVisualKit:
                 {
                     foreach (var target in targets)