Lifecycle Operator :: Emit K8s Events for all phases

[thisthat]

Goal

Make sure that for each phase we emit events consistently.

Details

For each phase, we emit K8s events that have no consistent value for the reason field.
We should take the opportunity to refactor the codebase to align event creation so it would be easier to move to a different standard or multiplexing the events to multiple channels. for example, publish a K8s event together with a CloudEvent and a Kafka message.

Acceptance Criteria

• When an event is fired, the reason field has the following format: ${phaseName}${status}, where ${status} is one of the following: Started,Finished,Failed
• The code to emit events is centralized making it easier to extend to other than just K8s events

DoD

• Events have a consistent reason field