WrappedMessage should avoid byte[] allocation for inner message

[wburns]

This byte[] allocation for a nested message

protostream/core/src/main/java/org/infinispan/protostream/WrappedMessage.java

Line 554 in 30b95bf

messageBytes = in.readByteArray();

can use a ByteBuffer instead which should provide a constant allocation cost instead of a possibly very large byte[] if the nested message is bigger, which can very easily with any user key or value object references.