D18952: new find module for Canberra

[Luca Beltrame]

lbeltrame added a reviewer: cgiboudeaux.

REPOSITORY
  R240 Extra CMake Modules

REVISION DETAIL
  https://phabricator.kde.org/D18952

To: sitter, cgiboudeaux
Cc: kde-frameworks-devel, kde-buildsystem, michaelh, ngraham, bruns