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: I2e2dd90f9b89949e0e1fb56c39e62926973367de
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
commit4ccb4bcb85f4276427e87e537ad740ec08735ef2
parent94a9c28dc788a62c88d228bc357f873617394510
authorJoerg Bornemann <joerg.bornemann@qt.io>
committerJoerg Bornemann <joerg.bornemann@qt.io>
commit timeSat, 29 Aug 2026 05:51:31 +0000