WINDUP-133: Refactor much of the BlackList/Classification functioanlity to use the more traditional graph/rule interaction. (Needs more work)

This is a preliminary PR for discussion purposes since I'll be on Vacation for a week. There is still a failing test (HintsClassificationsTest.java) Consequently, that is also where you should start to look at this to see what I've changed.
Is this well thought through? The performance will probably suffer. Is such information needed after the migration_rules are finished?