Add test case related to measure compute score and its energy consumption impact
Test case opnfv_yardstick_tc015.yaml is added that runs a CPU test and monitor
energy consumtion impact synchronized with cpu load.
opnfv_yardstick_tc015.rst is added to provide documentation of the test case.
energy.yaml sample is added to show how to add energy testing in any test case.
JIRA: YARDSTICK-1624
Co-authored by: Sun Guannan <sungn2@lenovo.com>
Signed-off-by: Roland Picard <roland.picard@orange.com>
Change-Id: I2403c38bbf320f96d2ed1d9e262560388efc44c9