Hperion History API: staging and demo: RabbitMQ

[theblockstalk]

Acceptance criteria

• RabbitMQ service is running in staging and demo environment for use in Hyperion API
• Documentation updated for how this is done as adeqate

[theblockstalk]

Strategies

• https://marketplace.digitalocean.com/apps/rabbitmq (droplet template)
• App using docker container