Tests: Add standalone test configuration preamble to manual tests


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

Task-number: QTBUG-95272
Change-Id: Ide9ac58a52d51fd5cd6353e201cf09c9f5325ca6
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
commita5e6828e360d7408cde8bff92432ecd124b69a14
parentec93d6ebef46373a870adc32caf2183a583c69ae
authorJoerg Bornemann <joerg.bornemann@qt.io>
committerJoerg Bornemann <joerg.bornemann@qt.io>
commit timeTue, 8 Sep 2026 19:25:40 +0000