ScatterChart doesn't support rangeAnnotation.

I would like to use a scatter plot, but I need the range annotations to color part of the background of the chart. This is easy to do using `LineChart`, but not for `ScatterChart` even though the `rangeAnnotations` property is in a common ancestor.

The ability to set this property needs to be exposed in the `ScatterChartData` through the constructor just as it is exposed in the `LineChartData` constructor.

Start with the ScatterChartData constructor and compare how rangeAnnotations is exposed in the LineChartData constructor. Confirm that the property can be passed for scatter charts and that it colors the requested chart background area as it does for line charts.

Written by the indexing model from the issue text.