Changes to Get group and descendant product vouchers, localized. Roles: admin, group manager.

added the new AGE enum value to the productVouchers/items/product/audience/criterionType response property for the response status 200

added the new GREATER_THAN_OR_EQUALS enum value to the productVouchers/items/product/audience/criterionOperator response property for the response status 200

added the new LESS_THAN_OR_EQUALS enum value to the productVouchers/items/product/audience/criterionOperator response property for the response status 200

added the optional property productVouchers/items/product/course/managerAudienceId to the response with the 200 status

added the optional property productVouchers/items/group/groupType/externalReferenceId to the response with the 200 status

added the optional property productVouchers/items/groupRole/externalReferenceId to the response with the 200 status

added the optional property productVouchers/items/product/cert/active to the response with the 200 status

added the optional property error/errorId to the response with the 400 status

added the optional property error/errorId to the response with the 401 status

added the optional property error/errorId to the response with the 403 status

added the optional property error/errorId to the response with the 404 status

added the optional property error/errorId to the response with the 500 status