public void forEachEntryAsBytes(final Txn<ByteBuffer> txn,
                                    final Consumer<CursorIterable.KeyVal<ByteBuffer>> entryConsumer) {
        forEachEntryAsBytes(txn, KeyRange.all(), entryConsumer);
    }
Apply the passed entryConsumer for all entries. The consumer works on
the raw bytes of the entry.
stroom-lmdb/src/main/java/stroom/lmdb/AbstractLmdbDb.java