add timestamps/duration to job.xml

[zelial]

Please add timestamps to results, it helps when debugging failures and developing tests.

Ideally each <result> element would have an attribute with time when it was logged and each <task> element would have attributes with times of their start and finish.

[blaskovic]

I am not sure if it is possible, but these times should be taken from HOST machine and not from slaves, because testcases can manipulate with time.

[p3ck]

Should be possible to use the HOST time. When the result is recorded the current time can be recorded as well. Thanks for the RFE