Add support for complex bindings to ExpandoObject Completed

When binding to the Blazor Grid we can use complex binding strings for expando objects like "Properties.Code".

<SfGrid TValue="BusinessObject" … >

    <GridColumn
Field="Properties.Code" />

   …

</SfGrid>

We have a view model shaped like below that provides the expando objects.

public class BusinessObject

{

public dynamic Properties { get; set; } = new ExpandoObject();

public string SomeBusinessInfo {get; set; }

etc.

}

When we attempt to use a similar binding strategy with the TreeGrid it fails (see incident 303936).  We need the TreeGrid binding to work the same as the standard Grid in order to correctly work with our view models.

Thanks,