public HadoopJarStepConfig newInstallPigStep() {
        return newInstallPigStep(new String[0]);
    }
Step that installs the default version of Pig on your job flow.

@return HadoopJarStepConfig that can be passed to your job flow.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/util/StepFactory.java