Implement profiling extensibility points in fortune

[craigedmunds]

At Victor we use New Relic to allow us to get a deep understanding of how our code is performing in our deployed environments.

We want to use New Relics custom tracer functionality within our fortune instances to log a detailed breakdown of where time is being spent within a transaction, without embedding new relic as a dependency of fortune. https://docs.newrelic.com/docs/agents/nodejs-agent/supported-features/nodejs-custom-instrumentation#expanding-instrumentation

To achieve this we'll provide extension points at critical times within the lifecycle:

• Fortune request start & end
• Request parse start & end
• Database call start & end
  • Connection open start & end
• Response preparation parse start & end
• Include resource processing start & end
• Anything else?

[EugeneKostrikov]

Continuing the list:

• hooks start & end totals
• distinct hooks start & end (they run sequentially)