AnswerRanker -> AnswerMerger, more clear name
FocusGenerator: Catch also NNS
AnswerMerger: Copy QuestionInfo over ASAP

We got a completely weird internal UIMA errors otherwise.
CandidateAnswer in SearchResultCAS: Move from Result to PickedPassages view

This will allow easily copying linguistic annotations to CandidateAnswerCAS
FocusGenerator: Fix the NN POS match again
AnswerGenerator: Copy over all relevant annotations to the CandidateAnswerCAS
New pipeline stage AnswerAnalysis

It finds Focus and LATs in CandidateAnswerCAS; therefore, we also
introduce new annotators analysis.answer.{Focus,LAT}Generator.