Port QQuickRenderControl rendering used for 3D edit view also for
2D views.
This also fixes the issue of only partially rendered form editor
view for root items with non-origin position by adjusting the
position to 0,0 on the puppet side via an extra injected item.
As a result of the root item always being rendered at origin,
the visualization of the root item offset is no longer visible in
the form editor (the checkerboard background item).
Change-Id: Ide29510ef52513340d205ed35ac35c8cce66715c
Fixes: QDS-3159
Fixes: QDS-3175
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>