Add NETCONF notification for ONU activation and Kafka client to receive events, update dependencies

Change-Id: I5f768fa8077ef7c64e00a534744ca47492344935
diff --git a/go.mod b/go.mod
index 7002900..58bb4dc 100644
--- a/go.mod
+++ b/go.mod
@@ -9,9 +9,11 @@
 )
 
 require (
+	github.com/Shopify/sarama v1.29.1
 	github.com/golang/protobuf v1.5.2
-	github.com/opencord/voltha-lib-go/v7 v7.1.5
+	github.com/opencord/voltha-lib-go/v7 v7.2.0
 	github.com/opencord/voltha-protos/v5 v5.2.3
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.7.1
 	google.golang.org/grpc v1.44.0
+	google.golang.org/protobuf v1.27.1
 )