Add autotest for QQuickRenderControl

Let's celebrate the feature's 6 year anniversary with introducing an
autotest for it.

Also happens to be good sample code for generating image sequences from
animated Quick scenes driven by a custom animation driver.

Tied to (direct) OpenGL at the moment. The RHIified version will appear
eventually as the work for introducing RHI support in QQuickRenderControl
progresses.

Task-number: QTBUG-78595
Change-Id: I7294ce986dca9968407ae738afe7ed2640ecd103
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

0 files changed, 0 insertions, 0 deletions