Also consider active play time and level play/completion count in NewUserJob #1157

Currently, new users will already get promoted to regular users if their account simply exists for a certain amount of time. We should add more requirements to more reliably determine whether a user is new or not, like checking how many unique levels they've played and completed, and how much active play time they have on any game (depends on #1142). All these requirements should also be configurable by the server operator, just like the account age requirement.