Possibility to format duration by using a custom script

[ahelmel]

Is your feature request related to a problem? Please describe.
At the moment the duration in the report is not formatted in a human/non-developer readable manner.

Describe the solution you'd like
I would like to define a custom formatting function for the duration in the reporter. I want to use something more readable as the duration format like "3 seconds", "1 minute, 12 seconds", ...

Describe alternatives you've considered

Additional context