VOL-572: Integration testing with Kubernetes

* Updated test_voltha_alarm_events to run in the single-node Kubernetes environment, as well
well as in docker-compose. Removed the steps to run ponsim from the README descriptions for
test_voltha_alarm_events and test_voltha_alarm_filters; these tests create simulated_olt devices,
not ponsim_olt devices.

* Updated test_voltha_xpon to run in the single-node Kubernetes environment, as well as
in docker-compose. The test takes about 10 times longer to run in Kubernetes; the reason
why is currently unknown.

Change-Id: I751cf1a84a48af1123e340e739263f5b58d39a0e
diff --git a/tests/itests/env/voltha-k8s-start.sh b/tests/itests/env/voltha-k8s-start.sh
index 0a1653a..93de7cc 100755
--- a/tests/itests/env/voltha-k8s-start.sh
+++ b/tests/itests/env/voltha-k8s-start.sh
@@ -2,9 +2,12 @@
 
 kubectl apply -f k8s/namespace.yml
 kubectl apply -f k8s/single-node/consul.yml
+kubectl apply -f k8s/single-node/zookeeper.yml
+kubectl apply -f k8s/single-node/kafka.yml
 kubectl apply -f k8s/single-node/fluentd.yml
 
 kubectl apply -f k8s/single-node/vcore_for_consul.yml
 kubectl apply -f k8s/envoy_for_consul.yml
 kubectl apply -f k8s/single-node/vcli.yml
 kubectl apply -f k8s/single-node/ofagent.yml
+kubectl apply -f k8s/single-node/netconf.yml