Tests: Add standalone test configuration preamble


Add the boilerplate standalone test prelude to each test, so that
they can be configured with cmake or qt-cmake directly without the
qt-cmake-standalone-test script.

Task-number: QTBUG-93020
Change-Id: I6f42d6fa70a58068e3de559d5e96088b861f72a6
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
commit2241414159bda150a4d85351686fafbd0a71a414
parent6d2f8c5017a75c5ab9c0ade1efae1cefaff9a642
authorJoerg Bornemann <joerg.bornemann@qt.io>
committerJoerg Bornemann <joerg.bornemann@qt.io>
commit timeSat, 29 Aug 2026 05:51:29 +0000