Add sensu yum repository to base image
Create images for sensu-server, sensu-api and sensu-client processes
Install a basic set of handler plugins into server image
Install a basic set of sensu plugins into client image
Change-Id: I0b88133080c58070c24ed90059315366b64034c6
This patch adds possibility to have container with sensu-client service.
Implements: blueprint container-healthchecks
Change-Id: I1c659ce38299d5497a80fa96dd2dd39bd40176c3