Performance: Pack performance data to SQUAD

Pack memory footprint and profiling data together to performance
metrics JSON file. Send it to current QA-Report SQUAD dashboard.

Now performance script generates the data of storage during the
build process, and then saves as JSON file in the SHARE_FOLDER.
After LAVA testing artifacts, the script collects the profiling
data from the target log and sends all performance data to SQUAD.

Signed-off-by: Jianliang Shen <jianliang.shen@arm.com>
Change-Id: I29ffef8fa53def896df67d1e2b1818caf435506b
6 files changed