fixing bug in mesh-free interpolator factory
fixing bug in mesh-free interpolator factory

dalg24/DataTransferKit,Rombur/DataTransferKit,ORNL-CEES/DataTransferKit,Rombur/DataTransferKit,ORNL-CEES/DataTransferKit,Rombur/DataTransferKit,amccaskey/DataTransferKit,ORNL-CEES/DataTransferKit,amccaskey/DataTransferKit,dalg24/DataTransferKit,amccaskey/DataTransferKit,amccaskey/DataTransferKit,dalg24/DataTransferKit,Rombur/DataTransferKit,dalg24/DataTransferKit,ORNL-CEES/DataTransferKit