plot-analysis: updates to breakdown deadtimes

updates to the plot analysis scripts so that the deadtimes are broken down into reports about the time before the first task, time after the last task and time between tasks, as well as the current report for all time spent not processing tasks.

mentioned in merge request !343 (merged)

Thanks. I guess that's orthogonal to the changes to include a split by sid ?

Yes, they seem so. Still waiting for an MPI update on that request. Rainy in Durham once more.

Ah yes, I had left this on the backburner. British weather here as well so I shall look at it this afternoon.

Status changed to merged

mentioned in commit ac7a4c49