Email notification and CCTV admin verification code changes

added code for attendance upload and approval

View/Update CCTV verification status of institutes
Changes has been added

adding code for student enrollment, exams, student registration for exams in dev

Added audit feature and document verification status

Changed response and added impl for service class

Changed the dependency and made changes in the java version

Merged all the code from Jay and made the properties file up and running

Merged the entity repo

added exam cycle and student enrolment initial code

Payment service added

Payment service added