@Named annotations should be used as service discriminator if present

[cjbooms]

The annotation processor should look for the presence of a javax.inject.Named annotation on the current javax.lang.model.element.Element being processed. Be that a class annotated with @ServiceExport, or a field or parameter annotated with @ServiceImport

This can easily be checked using:

javax.inject.Named named = componentClazz.getAnnotation(javax.inject.Named.class);

If present, the value should be used as a discriminator when generating the Peaberry imports and exports. For example:

                bind(export(ServiceOne.class))
                        .annotatedWith(Names.named("someBeanName"))
                        .toProvider(service(ServiceOneImpl.class)
                                .attributes(attributes)
                                .export());