Core/Quests: Quest flag fixups

* Update flag names
* Implemented QUEST_FLAGS_COMPLETION_NO_DEATH and QUEST_FLAGS_FAIL_ON_LOGOUT
* Started using QUEST_FLAGS_COMPLETION_EVENT and QUEST_FLAGS_COMPLETION_AREA_TRIGGER instead of a custom SpeclalFlag
* Renamed Quest::IsAutoComplete to Quest::IsTurnIn to better describe what it means (a quest that can be turned in without accepting it to quest log)
* Implemented QUEST_FLAGS_UPDATE_PHASESHIFT and removed forced phaseshift updates on every quest status change
* Implemented QUEST_FLAGS_LAUNCH_GOSSIP_ACCEPT - reopens gossip menu with questgiver
Port From (https://github.com/TrinityCore/TrinityCore/commit/4d4c7e68935df9ca40bd5539d602ac4e779f53d5)

Source/Game/Spells/Spell.cs

@@ -71,10 +71,10 @@ namespace Game.Spells
             _triggeredCastFlags = triggerFlags;
 
             if (info.HasAttribute(SpellAttr2.DoNotReportSpellFailure))
-                _triggeredCastFlags = _triggeredCastFlags | TriggerCastFlags.DontReportCastError;
+                _triggeredCastFlags |= TriggerCastFlags.DontReportCastError;
 
             if (m_spellInfo.HasAttribute(SpellAttr4.AllowCastWhileCasting))
-                _triggeredCastFlags = _triggeredCastFlags | TriggerCastFlags.IgnoreCastInProgress;
+                _triggeredCastFlags |= TriggerCastFlags.IgnoreCastInProgress;
 
             m_castItemLevel = -1;
 

Source/Game/Spells/SpellEffects.cs

@@ -3362,7 +3362,7 @@ namespace Game.Spells
                 ushort logSlot = player.FindQuestSlot(questId);
                 if (logSlot < SharedConst.MaxQuestLogSize)
                     player.AreaExploredOrEventHappens(questId);
-                else if (quest.HasFlag(QuestFlags.Tracking))  // Check if the quest is used as a serverside flag.
+                else if (quest.HasFlag(QuestFlags.TrackingEvent))  // Check if the quest is used as a serverside flag.
                     player.SetRewardedQuest(questId);          // If so, set status to rewarded without broadcasting it to client.
             }
         }