VOL-1460 Updates to protos to match core and updates to go stubs.
Also added support to build with godeps.

Change-Id: I4b312a6dcf67e3a3f93f675da38da2ed5164e077
diff --git a/protos/voltha_protos/inter_container.proto b/protos/voltha_protos/inter_container.proto
index 207828b..e1d5406 100644
--- a/protos/voltha_protos/inter_container.proto
+++ b/protos/voltha_protos/inter_container.proto
@@ -5,7 +5,7 @@
 import public "voltha_protos/logical_device.proto";
 
 
-option go_package = "github.com/opencord/voltha-go/protos/inter_container";
+option go_package = "github.com/opencord/voltha-protos/go/inter_container";
 
 package voltha;
 
@@ -48,7 +48,8 @@
     MessageType type = 2;
     string from_topic = 3;
     string to_topic = 4;
-    int64 timestamp = 5;
+    string key_topic = 5;
+    int64 timestamp = 6;
 }
 
 message Argument {