GeometryFilter
It would be nice to have an option to add a new attribute that contains the description of geometry type after its filtered. For example, the same idea as the "Destination Geometry Attribute" parameter within the GeometryExtractor transformer.
TestFilter
The same idea can be used for the TestFilter transformer. After filtering features would be nice to have an option to create a new attribute that contains as a value the same name of the Output Port.
