APPBROWSER-313: medium value and relative standard deviation

Calculate the median value and relative standard deviation for better performance comparison.

Change-Id: I433baa0b030f988d661777b2cbf8bf10c70f39d4
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/111638
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
2 files changed