Remove explicit from copy constructor
Remove explicit from copy constructor

venkatarajasekhar/etl,GatorQue/etl,ETLCPP/etl,ETLCPP/etl,venkatarajasekhar/etl,ETLCPP/etl,GatorQue/etl,venkatarajasekhar/etl,ETLCPP/etl,GatorQue/etl