Skipped startValue/endValue properties, since they are computed and
writable, which is not supported at the moment.
Skipped currentValue, since its setter might be called inside the
getter, which is not recommended.
Task-number: QTBUG-85520
Change-Id: I1f872b4fcc7227ed91b6915891bbc66019151826
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Andreas Buhr <andreas.buhr@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>