Offer ability to read the value in raw marshalled form in clustered listener filter and converter

To avoid the need to ship the value class to all the data grid classpath, it would be quite useful to ask to read the value as byte[] / marshalled form for the filter and converter part on each node involved (for a clustered listener).

For example, if the value is serialized as protobuf, an implementation could receive the byte[] of the protobuf and read the necessary properties without forcing a specific application .class file to be present. It also saves in unnecessary unmarshalling. Ideally a flag could be used @Listener(marshalled=false).

This issue might have been created (by Galder) but I cannot find it.