Subscription for Source Change Back-end

[henning-roos]

Description

As a system tester I need to have a subscription for source change back-end so that this scenario can be tested

1. Subscription triggered by artifact object when only the SCS1 event have been created (see the diagram) it will trigger a job that sends an activity triggered event.
2. Subscription that triggers job sending activity started, activity finished, activity canceled
3. Subscription that triggers a job sending a confidence level modified when activity finished has been aggregated
4. Subscription that triggers a job that compares the aggregated object when the CLM event is aggregated. If this job pass then the test case passed

Part of #162

[e-pettersson-ericsson]

Since the code changes have been merged, I'll close this issue.