Added Rename NPC

* To automate the character rename requests, added an NPC that will set
the rename flag for a character. Costs 20 RedditRO Coins.
* I've noticed an issue where the flag isn't updated...but I'm hoping
its just my bad SQL setup. If this does happen, we can examine a persons
quest log as proof they did pay (if they did not get the rename flag
set) and set the flag manually.
* Cooldown is 30 days to avoid too much traffic on the SQL db