A command-line benchmarking tool

v1.20.0

Features

• Add --reference-name option to give a meaningful name to the reference command, see #808 (@niklasdewally)
• The --ignore-failure option now supports a comma-separated list of exit codes to ignore (e.g., --ignore-failure=1,2), see #836 (@sharkdp)
• Python scripts: Add --time-unit option to advanced_statistics.py (@sharkdp)
• Python scripts: Add new plot_benchmarks.py script for plotting collections of benchmarks, see #806 (@marxin)

Bugfixes

• Fix bug where naming individual commands with parameter scan was not working correctly, see #794 (@teofr)

Other

• Restrict cat tests to Unix environments, see #776 and #777 (@ritvikos)