[VOL-5026] - Build and (pre-) deploy repo:voltha-go

Makefile
--------
  o Refactor test and mod-* targets per voltha-openolt-adatpter/Makefile.
  o Logic moved into makefiles/analysis/{coverage,sca}.mk
  o Inline ( set -euo pipefail && cmd | tee log) in test-coverage.
  o Improve error handling, "cmd | tee" will silently mask shell exit status.
  o make test failing locally (docker image: cpu profile acces denied).
  o Local problem, send a job through jenkins for accurate status.

makefiles/
----------
  o Copy in library makefiles
  o Esp docker/include.mk

compose/*/*.yaml
----------------
  o Update copyright notice

db/*/*.go
rw_core/*/*.go
--------------
  o Run gofmt -s -w on source to fix latent linting problmes that fail jobs.

Change-Id: If7cd349822edd0e604ac4daf27d315f528c6bcf6
diff --git a/rw_core/core/device/agent_flow.go b/rw_core/core/device/agent_flow.go
index 85c92f1..21fdef0 100644
--- a/rw_core/core/device/agent_flow.go
+++ b/rw_core/core/device/agent_flow.go
@@ -377,7 +377,7 @@
 	return response, nil
 }
 
-//filterOutFlows removes flows from a device using the uni-port as filter
+// filterOutFlows removes flows from a device using the uni-port as filter
 func (agent *Agent) filterOutFlows(ctx context.Context, uniPort uint32, flowMetadata *ofp.FlowMetadata) error {
 	var flowsToDelete []*ofp.OfpFlowStats
 	// If an existing flow has the uniPort as an InPort or OutPort or as a Tunnel ID then it needs to be removed
@@ -406,7 +406,7 @@
 	return nil
 }
 
-//deleteAllFlows deletes all flows in the device table
+// deleteAllFlows deletes all flows in the device table
 func (agent *Agent) deleteAllFlows(ctx context.Context) error {
 	logger.Debugw(ctx, "deleteAllFlows", log.Fields{"device-id": agent.deviceID})