Core/Misc: Moved CharacterInfo out of world to separate class

Port From (https://github.com/TrinityCore/TrinityCore/commit/ad4e63bae145ae49b584ab2fc621660430cec0d3)

Source/Game/Entities/Unit/Unit.Spells.cs

@@ -986,10 +986,7 @@ namespace Game.Entities
             // Increase hit chance from attacker SPELL_AURA_MOD_SPELL_HIT_CHANCE and attacker ratings
             HitChance += (int)(modHitChance * 100.0f);
 
-            if (HitChance < 100)
-                HitChance = 100;
-            else if (HitChance > 10000)
-                HitChance = 10000;
+            MathFunctions.RoundToInterval(ref HitChance, 0, 10000);
 
             int tmp = 10000 - HitChance;
 

Source/Game/Entities/Unit/Unit.cs

@@ -2073,7 +2073,8 @@ namespace Game.Entities
             {
                 if (player.GetGroup())
                     player.SetGroupUpdateFlag(GroupUpdateFlags.Level);
-                Global.WorldMgr.UpdateCharacterInfoLevel(ToPlayer().GetGUID(), (byte)lvl);
+
+                Global.CharacterCacheStorage.UpdateCharacterLevel(ToPlayer().GetGUID(), (byte)lvl);
             }
         }
         public uint getLevel() { return m_unitData.Level; }