VOL-570 : Change network type used by voltha components

- Updated from weave to calico which is the default network type
- Updated ponsim README file
- Removed deprecated data folder

Amendments:

- Change to specific version of kafka/zookeeper
- Added annotations statement to netconf manifest

Change-Id: Ibc8c06f037c275717b5c79b60443b7fd11545405
diff --git a/k8s/single-node/consul.yml b/k8s/single-node/consul.yml
index ec980e8..c07f4dc 100644
--- a/k8s/single-node/consul.yml
+++ b/k8s/single-node/consul.yml
@@ -56,7 +56,7 @@
       labels:
         app: consul
       annotations:
-        cni: "weave"
+        cni: "calico"
     spec:
       terminationGracePeriodSeconds: 10
       containers: