[Strings] Refactor Strings Usage (#2305)

* Initial commit checkpoint

* More functions converted

* Commify

* More functions

* Fin

* Sort declarations

* Split functions between files

* Bots

* Update strings.h

* Split

* Revert find replaces

* Repository template

* Money

* Misc function

* Update CMakeLists.txt

* Saylink

* Update strings.cpp

* Swap Strings::Saylink for Saylink::Create since saylink is coupled to zone database

* API casings

common/discord_manager.cpp

@@ -1,7 +1,7 @@
 #include "discord_manager.h"
 #include "../common/discord/discord.h"
 #include "../common/eqemu_logsys.h"
-#include "../common/string_util.h"
+#include "../common/strings.h"
 
 void DiscordManager::QueueWebhookMessage(uint32 webhook_id, const std::string &message)
 {