#20, added support for add existing candidate to position.
#20, Began enhancing the UI to support adding existing candidates.
#20, created alternate UI for adding existing candidates.
#20, renamed AddCandidate to NewCandidate
#20 Add existing candidates is now functional.
#20 Add unique constraint to CandidateStatus table.
Merge branch 'feature/add-existing-candidate-to-position' into develop