Add ct automation

Services including AF and local diameter server is now skipped as pytest test.
Another one was added as dummy services (stack 0 already loaded).

New ct script (CT automation) which needs 'netstat' tool in the ADML HTTP image.
This script:
* ask for re-build service image
* restart service container
* configure real services
* monitor service available
* ask for pytest global execution

New resources and examples needed are included.

Also fixed visilibity operation at SIGUSR2 interface: was returning
without updating response information.