* Fix new classes and packages tangles * Move `MessagingAnnotationPostProcessor` and `MethodAnnotationPostProcessor` impls out of the `config.annotation` package due to usage of the `FactoryBean` configs * Move `GenericHandler` and `GenericTransformer` to the `core` package to break a tangle with a `LambdaMessageProcessor` * Clean up affected tests and docs * * Fix Checkstyle violation for imports order