Execution Listener Support

[MichaelVonB]

Scenario

• Library version: 0.3.0
• Description of your use case: We want to update the status of our business object that is related to the process via BPMN. For that we use Intermediate Events with Execution Listeners

Current Behaviour

Execution Listener are not supported

Wanted Behaviour

Provide support for Execution Listener in C7 & C8 (Added in 8.6)

Possible Workarounds

Use a Service Task - While this works the feedback from our users is that the readability is better when using intermediate events in favour of service tasks