public FlavorsConfig.Flavor.Builder addFlavor(String flavorName,
                                                  double cpu,
                                                  double mem,
                                                  double disk,
                                                  double bandwidth,
                                                  Flavor.Type type) {
        return addFlavor(flavorName, cpu, mem, disk, bandwidth, true, true, type, x86_64, 0, 0);
    }
Simplifies creation of a node-repository config containing flavors.
This is needed because the config builder API is inconvenient.

Note: Flavors added will have fast disk and remote storage unless explicitly specified.

@author bratseth
node-repository/src/main/java/com/yahoo/vespa/hosted/provision/provisioning/FlavorConfigBuilder.java