@Override
    public void getConfig(SemanticRulesConfig.Builder builder) {
        for (RuleBase ruleBase : ruleBases)
            builder.rulebase(ruleBase.getConfig());
    }
Returns the semantic rules config from a set of rule bases.
Owned by a container cluster

@author bratseth
config-model/src/main/java/com/yahoo/vespa/model/container/search/SemanticRules.java