QA: Improvements to the result extraction process

[sergio-mena]

Tasks:

• Turn (exploratory) octave scripts into python for automatic plotting
• Find a better way to extract Prometheus graphs. By "better", I mean
  • a) less manual than Firefox snapshot feature
  • b) allowing for customizing things like labels, legend, axes setup, title
• Modify loadtime tool to sort the output of the experiments in the report (by connections then by rate)
• (stretch goal) Come up with a less manual way of generating the report (results presented more like a CI report, less like research results)

DoD:

• No existing octave scripts no longer there (new, exploratory ones accepted)
• loadtime outputs sorted results
• There is an automatic process to extract Prometheus graphs