Core/Auras: calculate periodic bonuses before specific mods, fixes Imp. Devouring Plague damage

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

@@ -4125,8 +4125,8 @@ namespace Game.Entities
             if (aurApp.HasRemoveMode())
                 return;
 
-            aura.HandleAuraSpecificMods(aurApp, caster, true, false);
             aura.HandleAuraSpecificPeriodics(aurApp, caster);
+            aura.HandleAuraSpecificMods(aurApp, caster, true, false);
 
             // apply effects of the aura
             for (byte i = 0; i < SpellConst.MaxEffects; i++)

Source/Game/Spells/Auras/Aura.cs

@@ -847,8 +847,8 @@ namespace Game.Spells
             {
                 if (!app.HasRemoveMode())
                 {
-                    HandleAuraSpecificMods(app, caster, true, true);
                     HandleAuraSpecificPeriodics(app, caster);
+                    HandleAuraSpecificMods(app, caster, true, true);
                 }
             }