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: I0b677ed8f435b88cbb4091de4f1f2c58bb675acd
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
commitccd041834ef2b475cc3ac1bc3580ec2b51f2c68c
parent59568c330a92e47c9f8bd31af4486647e5b77f10
authorJoerg Bornemann <joerg.bornemann@qt.io>
committerJoerg Bornemann <joerg.bornemann@qt.io>
commit timeSat, 29 Aug 2026 05:51:26 +0000