Relay v1.0.0

[AndyRae]

Relay is the centralised piece of a "simple" federated Hutch for Cohort Discovery.

It is located in a "gateway" environment, where it polls Rquest for jobs, adds them to queues, and is connected to by federated data provider nodes.
It returns the result of these nodes jobs, back to Rquest.

It is available to deploy as a C# binary, and container.

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It utilises Hutch RACKit to poll Rquest, and handles the response by adding it to a centralised RabbitMQ queue(s).

A data provider(s) node(s) then polls Relay to get job(s) from their respective queue(s). This is the "fan out" part of the federation.