Add option for bonuses to be read out like toss-ups

When one is in an actual quizbowl match, the bonuses would be read out word for word, giving a chance for the players to think. To help mimic the conditions of a quizbowl match, it would help if there was an option for the words in bonuses to be displayed one by one and for there to be a timer that starts immediately after all words have been displayed.