VOL-2154 : Moving back db/model to voltha-go

- Kept backend.go to limit impact in other components

Amendments:

- Removed db/model unit tests
- Forgot to fix some stash merges
- Removed unused "lock" parameter from kv clients
- Changed version for release

Change-Id: I25a03eb335ce22d49412be4bf2cceaff387dc4ae
33 files changed
tree: 88c88db38968eb431f9eed57f3508a5ec5b36cfd
  1. .gitignore
  2. .gitreview
  3. Makefile
  4. VERSION
  5. go.mod
  6. go.sum
  7. pkg/
  8. vendor/