Updates to Survey within TPDM

Story 

With the idea of further alignment with Ed-Fi core and the use of the person model, survey within TPDM will be updated in v1.0 with the following changes:

SurveyResponse

• Remove TeacherCandidate reference
• Remove Applicant reference
• Add Person reference

SurveyResponseTeacherCandidateTargetAssociation

• Renamed to SurveyResponsePersonTargetAssociation
• TeacherCandidate reference removed
• Add person reference.

SurveySectionResponseTeacherCandidateTargetAssociation

• Renamed to SurveySectionResponsePersonTargetAssociation
• TeacherCandidate reference removed
• Add person reference.