Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Adding traffic shaping support for CNI network driver **What this PR does / why we need it**: Adding traffic shaping support for CNI network driver - it's also a sub-task of kubenet deprecation work. Design document is available here: https://github.com/kubernetes/community/pull/1893 **Which issue(s) this PR fixes**: Fixes # **Special notes for your reviewer**: /cc @freehan @jingax10 @caseydavenport @dcbw /sig network /sig node **Release note**: ```release-note Support traffic shaping for CNI network driver ```