D9480: Add cmake function 'kdbusaddons_generate_dbus_service_file'

[Ralf Habacker]

habacker marked 6 inline comments as done.

REPOSITORY
  R271 KDBusAddons

REVISION DETAIL
  https://phabricator.kde.org/D9480

To: habacker, dfaure, kfunk
Cc: cgiboudeaux, #frameworks