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: I284ba7ed4d1abc1c35da15f93ffc3efe5cc8d418
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
commit348c606f7eea1f05147fe084f313586586206ba5
parent082239e1ea290e859a783cb17371f8971a836bb1
authorJoerg Bornemann <joerg.bornemann@qt.io>
committerJoerg Bornemann <joerg.bornemann@qt.io>
commit timeTue, 8 Sep 2026 19:26:00 +0000