Core/Spells: Implement SpellMisc.LaunchDelay

Port From (https://github.com/TrinityCore/TrinityCore/commit/c924840ce7fa7289fe73fb15b0f022bc74618ee1)

Source/Game/Spells/SpellInfo.cs

@@ -78,6 +78,7 @@ namespace Game.Spells
                 RangeIndex = _misc.RangeIndex;
                 RangeEntry = CliDB.SpellRangeStorage.LookupByKey(_misc.RangeIndex);
                 Speed = _misc.Speed;
+                LaunchDelay = _misc.LaunchDelay;
                 SchoolMask = (SpellSchoolMask)_misc.SchoolMask;
                 AttributesCu = 0;
 
@@ -636,6 +637,11 @@ namespace Game.Spells
             return !(HasAttribute(SpellAttr1.NoThreat) || HasAttribute(SpellAttr3.NoInitialAggro));
         }
 
+        public bool HasHitDelay()
+        {
+            return Speed > 0.0f || LaunchDelay > 0.0f;
+        }
+
         public WeaponAttackType GetAttackType()
         {
             WeaponAttackType result;
@@ -3751,6 +3757,7 @@ namespace Game.Spells
         public uint RangeIndex { get; set; }
         public SpellRangeRecord RangeEntry { get; set; }
         public float Speed { get; set; }
+        public float LaunchDelay { get; set; }
         public uint StackAmount { get; set; }
         public uint[] Totem = new uint[SpellConst.MaxTotems];
         public int[] Reagent = new int[SpellConst.MaxReagents];