feat: create aspects-consumer deployment

[Ian2012]

Description

This PR adds a deployment for an aspects-consumer which consumes events from the event bus. It also updates the settings of caliper and xapi to use the event bus backends.

Two settings are setup to control when to enable the event bus consumer and producer:

• ASPECTS_ENABLE_EVENT_BUS_CONSUMER
• ASPECTS_ENABLE_EVENT_BUS_PRODUCER

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[bmtcril]

Once the settings upgrades from in-flight ERB are in I'm happy to thumb this.

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