Core/Spells: Implement using different difficulty data from all spell related db2s, not just SpellEffect and SpellPower

Port From (https://github.com/TrinityCore/TrinityCore/commit/c7306439e7004288fb85890d6a5f730cf1761d71)

Source/Framework/Constants/SmartAIConst.cs

@@ -169,7 +169,7 @@ namespace Framework.Constants
         PassengerRemoved = 28,      // Cooldownmin, Cooldownmax
         Charmed = 29,      // onRemove (0 - on apply, 1 - on remove)
         CharmedTarget = 30,      // None
-        SpellhitTarget = 31,      // Spellid, School, Cooldownmin, Cooldownmax
+        SpellHitTarget = 31,      // Spellid, School, Cooldownmin, Cooldownmax
         Damaged = 32,      // Mindmg, Maxdmg, Cooldownmin, Cooldownmax
         DamagedTarget = 33,      // Mindmg, Maxdmg, Cooldownmin, Cooldownmax
         Movementinform = 34,      // Movementtype(Any), Pointid

Source/Framework/Constants/Spells/SpellAuraConst.cs

@@ -442,8 +442,8 @@ namespace Framework.Constants
         ModMaxPower = 418, // NYI
         ModBaseManaPct = 419,
         ModBattlePetXpPct = 420,
-        ModAbsorbEffectsAmountPct = 421, // NYI
-        Unk422 = 422,
+        ModAbsorbEffectsDonePct = 421, // NYI
+        ModAbsorbEffectsTakenPct = 422, //NYI
         Unk423 = 423,
         Unk424 = 424,
         Unk425 = 425,

Source/Framework/Constants/Spells/SpellConst.cs

@@ -32,6 +32,8 @@ namespace Framework.Constants
         public const int EffectAll = 255;
 
         public const float TrajectoryMissileSize = 3.0f;
+
+        public const int MaxPowersPerSpell = 4;
     }
 
 
@@ -2323,7 +2325,7 @@ namespace Framework.Constants
         UnitNearbyParty = 3,
         UnitNearbyAlly = 4,
         UnitPet = 5,
-        UnitEnemy = 6,
+        UnitTargetEnemy = 6,
         UnitSrcAreaEntry = 7,
         UnitDestAreaEntry = 8,
         DestHome = 9,
@@ -2333,11 +2335,11 @@ namespace Framework.Constants
         DestDb = 17,
         DestCaster = 18,
         UnitCasterAreaParty = 20,
-        UnitAlly = 21,
+        UnitTargetAlly = 21,
         SrcCaster = 22,
         GameobjectTarget = 23,
         UnitConeEnemy24 = 24,
-        UnitAny = 25,
+        UnitTargetAny = 25,
         GameobjectItemTarget = 26,
         UnitMaster = 27,
         DestDynobjEnemy = 28,
@@ -2347,9 +2349,9 @@ namespace Framework.Constants
         DestCasterSummon = 32, // Front Left, Doesn'T Use Radius
         UnitSrcAreaParty = 33,
         UnitDestAreaParty = 34,
-        UnitParty = 35,
+        UnitTargetParty = 35,
         DestCasterUnk36 = 36,
-        UnitLastAreaParty = 37,
+        UnitLastTargetAreaParty = 37,
         UnitNearbyEntry = 38,
         DestCasterFishing = 39,
         GameobjectNearbyEntry = 40,
@@ -2365,7 +2367,7 @@ namespace Framework.Constants
         DestCasterLeft = 50,
         GameobjectSrcArea = 51,
         GameobjectDestArea = 52,
-        DestEnemy = 53,
+        DestTargetEnemy = 53,
         UnitConeEnemy54 = 54,
         DestCasterFrontLeap = 55, // For A Leap Spell
         UnitCasterAreaRaid = 56,