Scripts/Priest: Implemented Priest talent From Darkness Comes Light Aura

Port From (https://github.com/TrinityCore/TrinityCore/commit/863a005ef229d62c81543355b558d719f013aca1)

Source/Scripts/Spells/Priest.cs

@@ -61,6 +61,7 @@ namespace Scripts.Spells.Priest
         public const uint EssenceDevourerShadowfiendHeal = 415673;
         public const uint EssenceDevourerMindbenderHeal = 415676;
         public const uint FlashHeal = 2061;
+        public const uint FromDarknessComesLightAura = 390617;
         public const uint GreaterHeal = 289666;
         public const uint FocusedMending = 372354;
         public const uint GuardianSpiritHeal = 48153;
@@ -1059,6 +1060,20 @@ namespace Scripts.Spells.Priest
         }
     }
 
+    [Script] // 390615 - From Darkness Comes Light (Talent)
+    class spell_pri_from_darkness_comes_light : AuraScript
+    {
+        void HandleEffectProc(AuraEffect aurEff, ProcEventInfo eventInfo)
+        {
+            GetCaster().CastSpell(GetCaster(), SpellIds.FromDarknessComesLightAura, aurEff);
+        }
+
+        public override void Register()
+        {
+            OnEffectProc.Add(new(HandleEffectProc, 0, AuraType.Dummy));
+        }
+    }
+
     [Script] // 47788 - Guardian Spirit
     class spell_pri_guardian_spirit : AuraScript
     {