Add unsafe methods SetValue, Scroll, ScrollHorizontal, ScrollVertical and SetScrollPercent to the BasicEdit
Add IsReadOnly, SupportedTextSelection, HorizontalScrollPercent, HorizontalViewSize, HorizontallyScrollable, VerticalScrollPercent, VerticalViewSize and VerticallyScrollable to the BasicEdit
Add unsafe methods Select, Deselect and ScrollIntoView to the BasicComboBoxItem