[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>

common/emu_oplist.h

@@ -287,6 +287,8 @@ N(OP_InstillDoubt),
 N(OP_InterruptCast),
 N(OP_InvokeChangePetName),
 N(OP_InvokeChangePetNameImmediate),
+N(OP_InvokeNameChangeImmediate),
+N(OP_InvokeNameChangeLazy),
 N(OP_ItemLinkClick),
 N(OP_ItemLinkResponse),
 N(OP_ItemLinkText),