@Override
    public double normalize(double value) {
        if (value <= step) {
            return stepValue * linearNormalizer.normalize(value);
        }
        return stepValue + delta(value + stepOffset);
    }
Step normalizer that normalize the value to [0, 1], when value is less than stepVar, it will be normalized with
LinearNormalizer, otherwise it will be normalized with a logarithmic function which approaches 1 while the value
approaches infinity.
core/src/main/java/kafka/autobalancer/common/normalizer/StepNormalizer.java