refactored worker so as to allow further data to be added to the file_map
refactored worker so as to allow further data to be added to the file_map

imacube/python-beaver,imacube/python-beaver,jlambert121/beaver,jlambert121/beaver,Open-Party/python-beaver,doghrim/python-beaver,thomasalrin/beaver,PierreF/beaver,timstoop/python-beaver,josegonzalez/python-beaver,PierreF/beaver,davidmoravek/python-beaver,davidmoravek/python-beaver,josegonzalez/python-beaver,thomasalrin/beaver,timstoop/python-beaver,rajmarndi/python-beaver,Open-Party/python-beaver,doghrim/python-beaver,rajmarndi/python-beaver,python-beaver/python-beaver,python-beaver/python-beaver