Please add `setItems` to controls

I know there are issues for this already, but it seems like you have an issue with adding the method. I don't see why you would, every JavaFX control provides it, so should every ControlsFX control.
Yes `Bindings.bindContent` works in most cases, however it has issues when it comes to extractors and some usecases for custom ModifiableObservableLists + has an objectively worse performance than `setItems`. Transforming items to a property for the models shouldn't be that difficult to implement as ListProperties and ObservableLists have very similar interfaces.
CheckListView already has it, why doesn't CheckComboBox, par example?