Scripts/Instances: Replace manual criteria timer starts in instances with new GameEvents api

Port From (https://github.com/TrinityCore/TrinityCore/commit/1c62b0b90f879e5df6c6785c12e9a5bddd65cb48)

Source/Game/Maps/Instances/InstanceScript.cs

@@ -320,6 +320,22 @@ namespace Game.Maps
                 minionInfo.bossInfo.minion.Remove(minion.GetGUID());
         }
 
+        // Triggers a GameEvent
+        // * If source is null then event is triggered for each player in the instance as "source"
+        public override void TriggerGameEvent(uint gameEventId, WorldObject source = null, WorldObject target = null)
+        {
+            if (source != null)
+            {
+                base.TriggerGameEvent(gameEventId, source, target);
+                return;
+            }
+
+            ProcessEvent(target, gameEventId, source);
+            instance.DoOnPlayers(player => GameEvents.TriggerForPlayer(gameEventId, player));
+
+            GameEvents.TriggerForMap(gameEventId, instance);
+        }
+
         public Creature GetCreature(uint type)
         {
             return instance.GetCreature(GetObjectGuid(type));
@@ -600,12 +616,6 @@ namespace Game.Maps
             instance.DoOnPlayers(player => player.UpdateCriteria(type, miscValue1, miscValue2, 0, unit));
         }
 
-        // Start timed achievement for all players in instance
-        public void DoStartCriteriaTimer(CriteriaStartEvent startEvent, uint entry)
-        {
-            instance.DoOnPlayers(player => player.StartCriteriaTimer(startEvent, entry));
-        }
-
         // Remove Auras due to Spell on all players in instance
         public void DoRemoveAurasDueToSpellOnPlayers(uint spell, bool includePets = false, bool includeControlled = false)
         {

Source/Game/Maps/ZoneScript.cs

@@ -22,6 +22,14 @@ namespace Game.Maps
 {
     public class ZoneScript
     {
+        public virtual void TriggerGameEvent(uint gameEventId, WorldObject source = null, WorldObject target = null)
+        {
+            if (source != null)
+                GameEvents.Trigger(gameEventId, source, target);
+            else
+                ProcessEvent(null, gameEventId, null);
+        }
+
         public virtual uint GetCreatureEntry(ulong guidlow, CreatureData data) { return data.Id; }
         public virtual uint GetGameObjectEntry(ulong spawnId, uint entry) { return entry; }