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

site/profiles/manifests/dns/resolvconf.pp

@@ -0,0 +1,14 @@
+# profiles::dns::resolvconf
+class profiles::dns::resolvconf (
+  Array[String] $nameservers,
+  Array[String] $search_domains,
+) {
+
+  file { '/etc/resolv.conf':
+    ensure  => file,
+    owner   => 'root',
+    group   => 'root',
+    mode    => '0644',
+    content => template('profiles/dns/resolvconf.erb'),
+  }
+}