Add a client for querying nameservers

Change-Id: I2d2eedcd162e7aeac4f3c9c92342bff448b4a5f5
diff --git a/designate_tempest_plugin/clients.py b/designate_tempest_plugin/clients.py
index 9e64b15..8450c5a 100644
--- a/designate_tempest_plugin/clients.py
+++ b/designate_tempest_plugin/clients.py
@@ -30,6 +30,8 @@
     PoolClient
 from designate_tempest_plugin.services.dns.v2.json.tld_client import \
     TldClient
+from designate_tempest_plugin.services.dns.query.query_client import \
+    QueryClient
 
 CONF = config.CONF
 
@@ -60,3 +62,9 @@
                                       **params)
         self.tld_client = TldClient(self.auth_provider,
                                     **params)
+        self.query_client = QueryClient(
+            nameservers=CONF.dns.nameservers,
+            query_timeout=CONF.dns.query_timeout,
+            build_interval=CONF.dns.build_interval,
+            build_timeout=CONF.dns.build_timeout,
+        )