External log integration

[therealryan]

It might be the case that logs from the system under test are available in some external system, e.g.: splunk/datadog/aws/etc. It'd be nice if an execution report could offer a link to the related system logs for a given test.

This would have to be a customisable behaviour plugged into the Flocessor. We've just need an API to allow a flow's report data to be edited before it get written to storage. The behaviour would need access to message data (there might be a logging correlation token in a message header or something).
The behaviour could then insert a link to the logs into the flow motivation text.