Add "revoke" method to "AtEnrollmentBase" to enable clients to revoke an approved enrollment. The revoke method accepts an instance of "EnrollmentRequestDescision" and instance of "AtLookup" as input parameters to perform revoke operation.
Added a static method "revoked" to "EnrollmentRequestDecision" to get an instance of "EnrollmentRequestDecision".
Update the version in pubspec.yaml and CHANGELOG.md
- What I did