This commit consists of the following:
1) The kafka messaging proxy in Twisted python for adapters
2) Initial implementation and containerization of ponsim OLT adapter
and ponsim ONU adapter
3) Initial submission of request and response facade in both Twisted
python and Go Language
4) Initial implementation of device management and logical device management
in the Core
5) Update to the log module to allow dynamic setting of log level per
package using the gRPC API
6) Bug fixes and minor changes

Change-Id: Ia8f033da84cfd08275335bae9542802415e7bb0f
diff --git a/db/kvstore/client.go b/db/kvstore/client.go
index 8b1c914..a7cbf2b 100644
--- a/db/kvstore/client.go
+++ b/db/kvstore/client.go
@@ -15,6 +15,10 @@
  */
 package kvstore
 
+import (
+	"github.com/opencord/voltha-go/common/log"
+)
+
 const (
 	// Default timeout in seconds when making a kvstore request
 	defaultKVGetTimeout = 5
@@ -38,6 +42,10 @@
 	Lease   int64
 }
 
+func init() {
+	log.AddPackage(log.JSON, log.WarnLevel, nil)
+}
+
 // NewKVPair creates a new KVPair object
 func NewKVPair(key string, value interface{}, session string, lease int64) *KVPair {
 	kv := new(KVPair)