On /lottery frontend page the count of winners that is sent to frontend
over socketIO started one index higher than it should.
This was from updating how winners are saved in the backend. Our winners
array now no longer needs to be incremented with 1 from the backend.
Moved all logic related to lotteryAttendees, lotteryWinners and
prelotteryWines into each their repository and controller.
Now only holds draw, archive and get archived lotteries.
Changed so get attendees no longer is done in two endpoints, now we use
req.isAuthenticated() to check if we want to return full or minimal json
data about each attendee.
