Given a vector of precinct totals and the total votes for the winner and the loser, make a plausible precinct-by-precinct vote count that works. Note: the margins of the precincts will all be the same as the margin of the overall race.
make.sample.from.totals(vote.W, vote.L, totals)
Total votes for winner.
Total votes for loser.
Vector of total votes for precincts.