Improve viper and cobra integration

- Add sub-commands flags
- Factorize version commands
- Fix import format
- Fix GUI
3 jobs for 402_fangs
Status Job ID Name Coverage
  Test
passed #1601
golang lint
Code lint

00:16:07

passed #1600
golang mongo goqt
Integration tests

00:02:45

passed #1599
golang mongo strong
Unit tests

00:06:00