Пакет alterator-service-samba-ad: Информация

- Fix .backend file
- Fix domain controller lookup error when joining a domain

- Rename start and stop functions
- Refactor main deploing function. Rename provision and join function
- Add configure method to main script
- Move utility functions to a separate file
- Add the ability to configure DNS backend
- Adapt .service for new enum subparameters
- Adapt status for new enum subparameters
- Fix for forwarders disappearing. Change path to bind settings.

- NMU: Add 'exit_status = true' for new version of executor