Add WorkOrder/Run Diagnostics

[rorymckinley]

Create a code that can be run from IEx to dump run diagnostics for a given workflow's workorder/runs (over a specified time period) . The intent is to identify if the data provides any useful info relating to performance bottlenecks wrt the worker/Lightning interaction.

For now, maybe dump some high-level stats to the console - but, if the data has value this could perhaps be fed into existing telemetry or dumped as CSV etc etc.

[rorymckinley]

@taylordowns2000 I got started on this before I jumped on to the query optimisation. Just want to check if this is still required?

[rorymckinley]

Assuming the answer here is "Nope" :)