Tests for os-hypervisors API extension of Nova

Tests against following paths are added:
os-hypervisors
os-hypervisors/detail
os-hypervisors/%hyper_id
os-hypervisors/%hyper_name/servers
os-hypervisors/statistics
os-hypervisors/%hyper_id/uptime

Implements: blueprint nova-os-hypervisors-api-extension-test
Change-Id: Ia209b113d0193720b445385e0fe399b81f48bb4b
diff --git a/tempest/manager.py b/tempest/manager.py
index 25e80ad..762bc18 100644
--- a/tempest/manager.py
+++ b/tempest/manager.py
@@ -22,6 +22,7 @@
 from tempest.services.compute.json import extensions_client
 from tempest.services.compute.json import flavors_client
 from tempest.services.compute.json import floating_ips_client
+from tempest.services.compute.json import hypervisor_client
 from tempest.services.compute.json import images_client
 from tempest.services.compute.json import keypairs_client
 from tempest.services.compute.json import limits_client
@@ -46,6 +47,7 @@
 VolumesClient = volumes_client.VolumesClientJSON
 SnapshotsClient = snapshots_client.SnapshotsClientJSON
 QuotasClient = quotas_client.QuotasClientJSON
+HypervisorClient = hypervisor_client.HypervisorClientJSON
 
 LOG = logging.getLogger(__name__)
 
@@ -132,6 +134,7 @@
         self.snapshots_client = SnapshotsClient(*client_args)
         self.quotas_client = QuotasClient(*client_args)
         self.network_client = NetworkClient(*client_args)
+        self.hypervisor_client = HypervisorClient(*client_args)
 
 
 class ComputeFuzzClientAltManager(Manager):