[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/group/cache.go b/rw_core/core/device/group/cache.go
index 49686ca..eb568cf 100644
--- a/rw_core/core/device/group/cache.go
+++ b/rw_core/core/device/group/cache.go
@@ -135,7 +135,8 @@
 
 // ListIDs returns a snapshot of all the managed group IDs
 // TODO: iterating through groups safely is expensive now, since all groups are stored & locked separately
-//       should avoid this where possible
+//
+//	should avoid this where possible
 func (cache *Cache) ListIDs() map[uint32]struct{} {
 	cache.lock.RLock()
 	defer cache.lock.RUnlock()