@Override
    public void registerClient(Client client) {
        super.registerClient(client, emptyHandler);
    }
In-memory implementation of the {@link IRegistry} using Vert.x 3's event bus to distribute the events to
all nodes. This is used for testing purposes only, and isn't sufficiently robust for production.

Each node has an event listener; a given node receiving a write/delete-type registry operation distributes
the events to all nodes listening, along with an attached node-unique UUID. Any listener ignores messages
from their own UUID.

@author Marc Savy {@literal <msavy@redhat.com>}
gateway/engine/vertx-eb-inmemory/src/main/java/io/apiman/gateway/engine/vertxebinmemory/EBInMemoryRegistry.java