Mark exec and service-management commands as DEPRECATED

Merged Tomasz Maczukin requested to merge deprecate-exec-and-service-related-commands into master

What does this MR do?

Adds deprecation notices for:

  • exec command
  • service-related commands (start|stop|restart|status|install|uninstall)

Does this MR meet the acceptance criteria?

  • Documentation created/updated
  • Tests
    • [-] Added for this feature/bug
    • All builds are passing
  • Branch has no merge conflicts with master (if you do - rebase it please)

What are the relevant issue numbers?

Closes #2710 (closed)

Edited by Tomasz Maczukin