Puppet Agent Monitoring (#10827)

* puppet agent monitoring

* change position of last run graph

* device overview panel

* updating documentation

* mouseover for Overview Dashboard

* adding blank line for code climate

includes/html/pages/apps.inc.php

@@ -250,6 +250,13 @@ $graphs['certificate'] = array(
     'age',
     'remaining_days',
 );
+$graphs['puppet-agent'] = array(
+    'last_run',
+    'changes',
+    'events',
+    'resources',
+    'time',
+);
 $graphs['mdadm'] = array(
     'level',
     'size',