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: Ibea8616b61afb62faebb3b082a4f77f1ab86d00f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
commitcde39fb3ee8123ac7edce4fd3efe861416cd5d82
parent678f3cd59a5d5ddf4253f8d593941929289544e8
authorJoerg Bornemann <joerg.bornemann@qt.io>
committerJoerg Bornemann <joerg.bornemann@qt.io>
commit timeSat, 29 Aug 2026 05:51:27 +0000