added setup.py for gcf library
added setup.py for gcf library

ahelsing/geni-tools,GENI-NSF/gram,GENI-NSF/gram,plantigrade/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools,tcmitchell/geni-tools,GENI-NSF/gram,tcmitchell/geni-tools