Add latency to SucceededJobDto

[ArneMancofi]

The SucceededJobDto class contains the TotalDuration, which seems also to include the latency.

It would be useful to be able to distinguish between the execution time and latency, for instance in cases where you want to assess the execution speed of the job.

Could the latency be added to SucceededJobDto?

Also, it might be useful to add duration and latency to the FailedJobDto class.

[ArneMancofi]

I have suggested a way to add the performance duration to the SucceededJobDto in PR2301.