private static SerializerVocabulary createSerializerVocabulary(final Vocabulary vocabulary) {
        return new SerializerVocabulary(vocabulary, true);
    }
A proof of concept for https://github.com/gchq/stroom/issues/1945
Trying to prove that we can generate a fast infoset vocab
for some xml and then append to it. This is to reduce the volume of data
stored in the LMDB ref data store.
stroom-pipeline/src/test/java/stroom/pipeline/refdata/TestFastInfosetVocab.java