Ability to set custom JAXB validation event handlers on outgoing responses in JBossWS-CXF

Currently CXF has the ability to set your own JAXB validation event handler on incoming messages, but the same setting is not available for outgoing messages. This RFE is specifically to add a similar setting for outgoing messages. The setting is called "jaxb-validation-event-handler" and is utilized in org.apache.cxf.jaxb.io.DataReaderImpl.