AnswerGenerator: *Jcas attributes -> *View
CandidateAnswerCAS: Split to Question, Answer views, copy over entire Question view

Our next step is matching the Question LATs with Answer LATs.
AnswerGenerator, AnswerMerger: Use JCasUtil where feasible
CandidateAnswer.AnswerInfo: Split confidence and passageScore
doc/HIGHLEVEL: LAT specific/generic; remove NEAT, superseded idea
Add basic Type Coercion via LATMatchTyCor, exponential specificity scoring