Add Python HourFrequency
Add Python HourFrequency

cloudera/spark-timeseries,sunheehnus/spark-timeseries,SeelozInc/spark-timeseries,cdalzell/spark-timeseries,Diwahars/spark-timeseries,cdalzell/spark-timeseries,aba1476/spark-timeseries,sryza/spark-timeseries,cloudera/spark-timeseries,sryza/spark-timeseries,SeelozInc/spark-timeseries,samklr/spark-timeseries