Feature/authorization

Created by: s-mm

Code changes are for authentication using AAP service and authorization using database information. The read and write access for each user is built from the database. The code does not include JWT verification as it requires installation of a new Perl module. The Perl dependencies will have to be modified so that the code uses the system Perl modules rather than the Perl 5.18.1 modules that are available bundled with the code.