Also cleanup documentation, with the exception of the "High-DPI
Support in Qt Quick Controls" page, which needs to be either
removed or rewritten after some fact checking.
Change-Id: I3cdf1f8554f8f26627a9a5f17c2ee0038c933468
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
[ChangeLog][Controls] Add HorizontalHeaderView and VerticalHeaderView.
They are controls associated with TableView. Support flicking synchronization
Support default, fusion, imagine, material and universal delegate styles.
Fixes: QTPM-1300
Change-Id: Ie3f913dd616cda0d4e5a22a3d95baf71692370fe
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>