COMPMID-761: Add CL/NEON OpticalFlow benchmark tests

Change-Id: I9ced2fc2cc6c8e5a17017cef60916a86eb87a4e2
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/134145
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
3 files changed