update knot role to support more operational variety

Now secondary zones, dynamic zones, interpeted catalog zones, etc.
are supported by our knot role

roles/knot/defaults/main.yaml

@@ -1,2 +1,11 @@
 ---
+knot__deploy_prometheus_exporter: true
+knot__log_level: info
 knot__remotes: [ ]
+knot__keys: [ ]
+knot__catalog_zones: [ ]
+knot__primary_zones: [ ]
+knot__catalog_secondary_zones: [ ]
+knot__secondary_zones: [ ]
+knot__dynamic_zones: [ ]
+knot__acls: [ ]