
Execution time is now measured for atomic actions, so we have time measuring for the whole benchmark and also detailed for each atomic action. Added the decorator atomic_action_timer and used it in nova, cinder and keystone scenarios. Partially implements: blueprint time-measuring-of-atomic-actions (Part "I) Core" of time-measuring-of-atomic-actions) Change-Id: I99571ef1221757784ce2b85889ad989fcae05bb2