Change run time from readable to epoch

[s0c-org]

I would like to start the discussion that we change the readable time in the JSON output to epoch for API requests.

Advantages that would come from this:

• Easier processing in programming languages.
• More reliable when converting to other time zones.

If you would go a bit further with this idea and add the epoch time from start and end, it would be possible with very little effort to implement a stopwatch for the benchmark.

[masonr]

Agreed with your idea!

PR #51 was just merged, which records the epoch start/stop times of the script and calculates the runtime. I'll be adding these values and the duration to the JSON output soon.