feat: find resolvers by role

- use puppetdbquery module to query puppetdb for resolvers
- move dns client config to profiles::dns::base
- manage the /etc/resolv.conf file

hieradata/common.yaml

@@ -7,6 +7,7 @@ profiles::base::puppet_servers:
   - 'prodinf01n01.main.unkin.net'
 
 profiles::dns::master::basedir: '/var/named/sources'
+profiles::dns::base::ns_role: 'roles::infra::dns::resolver'
 
 profiles::packages::base:
   - bash-completion