[Quest API] Add Scripting Support to Mercenaries (#4500)

* [Quest API] Add Scripting Support to Mercenaries

* Cleanup

* Cleanup

* Update lua_merc.h

* Update mob.cpp

* XYZH

* Final

* Update attack.cpp

* Update attack.cpp

* Simplify event invocation

* Inline example

* Nullptr init example

* EVENT_TIMER simplify add EventPlayerNpcBotMerc

* EVENT_TIMER_START

* Remove has_start_event

* EVENT_TIMER_START with settimerMS

* EVENT_POPUP_RESPONSE

* Consolidation

* Update attack.cpp

* Push

* Update quest_parser_collection.h

* Comments

* Cleanup per comments

---------

Co-authored-by: Akkadius <akkadius1@gmail.com>

zone/quest_interface.h

@@ -139,6 +139,30 @@ public:
 		return 0;
 	}
 
+	virtual int EventMerc(
+		QuestEventID event_id,
+		Merc* merc,
+		Mob* init,
+		std::string data,
+		uint32 extra_data,
+		std::vector<std::any>* extra_pointers
+	)
+	{
+		return 0;
+	}
+
+	virtual int EventGlobalMerc(
+		QuestEventID event_id,
+		Merc* merc,
+		Mob* init,
+		std::string data,
+		uint32 extra_data,
+		std::vector<std::any>* extra_pointers
+	)
+	{
+		return 0;
+	}
+
 	virtual bool HasQuestSub(uint32 npc_id, QuestEventID event_id)
 	{
 		return false;
@@ -189,6 +213,16 @@ public:
 		return false;
 	}
 
+	virtual bool MercHasQuestSub(QuestEventID event_id)
+	{
+		return false;
+	}
+
+	virtual bool GlobalMercHasQuestSub(QuestEventID event_id)
+	{
+		return false;
+	}
+
 	virtual void LoadNPCScript(std::string filename, int npc_id) { }
 	virtual void LoadGlobalNPCScript(std::string filename) { }
 	virtual void LoadPlayerScript(std::string filename) { }
@@ -198,6 +232,8 @@ public:
 	virtual void LoadEncounterScript(std::string filename, std::string encounter_name) { }
 	virtual void LoadBotScript(std::string filename) { }
 	virtual void LoadGlobalBotScript(std::string filename) { }
+	virtual void LoadMercScript(std::string filename) { }
+	virtual void LoadGlobalMercScript(std::string filename) { }
 
 	virtual int DispatchEventNPC(
 		QuestEventID event_id,
@@ -260,6 +296,18 @@ public:
 		return 0;
 	}
 
+	virtual int DispatchEventMerc(
+		QuestEventID event_id,
+		Merc* merc,
+		Mob* init,
+		std::string data,
+		uint32 extra_data,
+		std::vector<std::any>* extra_pointers
+	)
+	{
+		return 0;
+	}
+
 	virtual void AddVar(std::string name, std::string val) { }
 	virtual std::string GetVar(std::string name)
 	{