[Feature] Add optional is_forced parameter to Zone::Repop (#4046)

* [Feature] Add optional `is_force` parameter to Zone::Repop

# Perl
- Add `quest::repopzone(is_force)`.

# Lua
- Add `eq.repop_zone(is_force)`.

# Commands
- Cleanup `#repop` to use new parameter in `Zone::Repop`.

# Notes
- Allows operators to forcefully repop a zone without using a second method to clear the respawn timers.

* is_forced

* Update repop.cpp

* Update repop.cpp

zone/questmgr.h

@@ -105,7 +105,7 @@ public:
 	void depop_withtimer(int npc_type = 0); // depop NPC and start spawn timer
 	void depopall(int npc_type = 0);
 	void depopzone(bool StartSpawnTimer = true);
-	void repopzone();
+	void repopzone(bool is_forced = false);
 	void processmobswhilezoneempty(bool quest_override_on);
 	void settarget(const char *type, int target_id);
 	void follow(int entity_id, int distance);