Feat/projection event emitter

[dgafka]

Why is this change proposed?

This provides support for event emitter in new projection system, by introducing ProjectionDeployment attribute:

• Introduce ProjectionDeployment, which describe intention that given set of configs is only meaningful for projection deployment, and later can be removed
• Allow to set Projection as live: false, which gives ability to not emit events (rebuild phase)
• It does change the config from autoInitialization to manualKickOff: true, to be more descriptive of what is the aim of it. This is also moved now under ProjectionDeployment

Description of Changes

Non-live projection.

#[ProjectionV2('non_live_emitting_projection'), ProjectionDeployment(live: false)
class TicketProjection

manual kick off

#[ProjectionV2('skip_init_projection'), ProjectionDeployment(manualKickOff: true)
class TicketProjection

Pull Request Contribution Terms

• I have read and agree to the contribution terms outlined in CONTRIBUTING.

[dgafka]

cc: @jlabedo

[jlabedo]

Love it