D10825: Introduce aliases DocId, DeviceId and Inode

[Michael Heidelbach]

michaelh added a dependency: D10823: idutils: Fix typo.

REPOSITORY
  R293 Baloo

REVISION DETAIL
  https://phabricator.kde.org/D10825

To: michaelh, adridg, #baloo, #frameworks
Cc: ashaposhnikov, michaelh, kmorwinski, spoorun, nicolasfella, alexeymin