static ProgressMeasure create() {
        return new ProgressMeasureImpl();
    }
Adds a listener that will be called each time a value changes.

@param listener  to add
@return          an instance of a {@link ProgressMeasure} that has the 
                 provided listener
runtime-parent/runtime-core/src/main/java/com/speedment/runtime/core/util/ProgressMeasure.java