Add personal player PR wipes NON admin command

Could you add a way for users to wipe their own PR with a configurable cooldown? Could technically make it just piggyback on the /pr del command (not sure how bad it is to do this way) using console to run the command like ``ConsoleSystem.Run(ConsoleSystem.Option.Server, $"/pr del {player.userID}");`` and just make it so they need X permission to use the new command. Then having a cooldown in config that can be changed based on the server owners preferences, aka 1 day, 1 week, 1 hr.

Thanks