feat: manage more ceph requirements (#288)

- add ceph-common to provide utilities for managing ceph
- add root and sysadmin ssh keys for ceph deployments

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/288

site/profiles/manifests/base/root.pp

@@ -1,13 +0,0 @@
-# manage the root user
-class profiles::base::root {
-
-  # TODO
-  # for now, add some root directories
-
-  file {'/root/.config':
-    ensure => directory,
-    owner  => 'root',
-    group  => 'root',
-    mode   => '0600',
-  }
-}