private static Set<ComponentSpecification> createComponentSpecifications(List<String> stringSpecs) {
        Set<ComponentSpecification> specifications = new LinkedHashSet<>();
        for (String stringSpec : stringSpecs) {
            specifications.add(new ComponentSpecification(stringSpec));
        }
        return specifications;
    }
Builds a chains model from config.

@author Tony Vaagenes
container-core/src/main/java/com/yahoo/component/chain/model/ChainsModelBuilder.java