mute/unmute

Matched entity (unit, service, environment) matched by the rule is muted (excluded for matching) until command queue flash.
Added "mute" and "unmute" functions to manually and permanently (till next deployment) mute/unmute specific entity.

Change-Id: I5bcd5d8cd946011c0de3bf08abec1acc7b8cc6d6
Merge "mute/unmute"