This will be useful if we ever need to restore annotations with a behavior similar to Search 5.
We need the type of the annotated property, so as to decide whether to use .fullTextField or .genericField when implementing Search 5's @Field annotation.
We need access to other annotations on the annotated property, in order to support Search 5's @Analyzer, @Normalizer, @SortableField and maybe @NumericField. Maybe we could expose them as markers, similarly to what we did for bridge binding? See org.hibernate.search.mapper.pojo.bridge.builtin.spatial.impl.LatitudeMarker and org.hibernate.search.mapper.pojo.bridge.builtin.spatial.impl.GeoPointBridge.Binder#doBind for example.