Reflection_Engine: Pick up descriptions from base class

#### Description:

Might be more of an engine issue(?), but raising here.

We have a couple of cases where we have interfaces defining a property. To keep the descriptions confined to one place, it would be good if all classes implementing this interface could pick up the property descriptions for the interface itself, to avoid having to retype them out for each subclass. Will greatly increase maintainability and make sure things don't go out of sync.