D13743: Migrate build system to use find_package in autotests/ki18n_install

[Ralf Habacker]

habacker removed a reviewer: leinir.

REPOSITORY
  R249 KI18n

REVISION DETAIL
  https://phabricator.kde.org/D13743

To: habacker, apol, ilic, leinir
Cc: kde-frameworks-devel, michaelh, ngraham, bruns