[Titles] Cleanup titles, title suffix, and last name methods. (#2174)

* [Titles] Cleanup titles, title suffix, and last name methods.
- Use strings instead of const chars*.
- Add optional parameter to SetAATitle in Lua so you can save to the database similar to Perl.
- Cleanup #lastname command.
- Cleanup #title command.
- Cleanup #titlesuffix command.

* Update npc.cpp

zone/questmgr.h

@@ -127,7 +127,7 @@ public:
 	void rain(int weather);
 	void snow(int weather);
 	void rename(std::string name);
-	void surname(const char *name);
+	void surname(std::string last_name);
 	void permaclass(int class_id);
 	void permarace(int race_id);
 	void permagender(int gender_id);