Tweak the brew time for various recipes

The original brew times were configured based on their real world values,
regadless of the fact that a (default) year in the Cataclysm DDA world is
about 1/20th of a real year. The times have been adjusted to now take this
into account. E.G. Vinegar will take about 11.5 days to ferment in game,
where it orignally took 60+ days.