[Feature] Implement /changename & related script bindings. Clean up #set name (#4770)

* initial work, need to clean up gm commands still

* cleaned up command, works without kicking char select now

* remove thj-specific methods

* add script hooks

* actually clear flag

* rework questmgr::rename

* remove unnecessary logging

* revert

* added missing binding to perl api and updated some text

* don't return a value

* Fix some bad argument types.

* adjust case

* alpha order

* refactor some old string stuff

* don't quote integers, bob

---------

Co-authored-by: Zimp <zimp@zenryo.xyz>
Co-authored-by: Chris Miles <akkadius1@gmail.com>

zone/client.h

@@ -332,6 +332,10 @@ public:
 	bool KeyRingClear();
 	bool KeyRingRemove(uint32 item_id);
 	void KeyRingList();
+	bool IsNameChangeAllowed();
+	void InvokeChangeNameWindow(bool immediate = true);
+	bool ClearNameChange();
+	void GrantNameChange();
 	bool IsPetNameChangeAllowed();
 	void GrantPetNameChange();
 	void ClearPetNameChange();
@@ -511,7 +515,8 @@ public:
 	bool AutoAttackEnabled() const { return auto_attack; }
 	bool AutoFireEnabled() const { return auto_fire; }
 
-	bool ChangeFirstName(const char* in_firstname,const char* gmname);
+	bool ChangeFirstName(const std::string in_firstname,const std::string gmname);
+	bool ChangeFirstName(const std::string in_firstname);
 
 	void Duck();
 	void Stand();