Service Validation for Glance-API

As an option, validate Glance API service with a default or custom
command, and if the service is up and running, create a Puppet Anchor

Change-Id: Id713d32d1dc34a15e93adb89c18d3471145e6ffe
(cherry picked from commit 2fa0df1e3ba95511449800c6df6dbb1e1fb01d5e)