HopAdditionController now shows picker
Removed debug log output
HopAdditionController alpha acid dial works

Still need to deliver on quantity and boil time dials
Stop using ui tags in HopAdditionViewController
Pull out HopAdditionController picker delegate into a separate class.

Since there will eventually be a few different picker delegates, this
will make it easier to add and change functionality.   I can even see
switching between grams and ounces working using separate picker
delegates (eventually).