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InteviewSheduller module

getApplicantByID feature scratch done and  going to review
GetAppointmentByID feature - Done

PostAppointment feature - have one problem " not set content type "
GetAppointmentByID feature - Done

PostAppointment feature - have one problem " not set content type "
PostAppointment feature - have one problem " not set content type "
PostAppointment feature done
PostAppointment feature done
GetAppointment feature done
Move logic from constructor to code block
Merge branch 'InterviewScheduler/getAppointmentByID' of https://github.com/combats/ITA-java into InterviewScheduler/getAppointmentByID