Refractor show_female_ratio methods to allow generic use
Added UI elements for Youth, Adult and  Elderly Data driven ratios
Renamed  FEM_ATTRIBUTE to FEMALE_ATTRIBUTE and Refractor toggle ratio
Added Youth, Adult and Elderly ratio in Postprocessor
Added connection and signals
Working data driven age ratios
clean up
test infrastucture for data driven aggregation
clean up
added utility method (compare_result_to_expected_file) to compare rusults to expected file
test data driven analysis
Added data driven functioning test
pep8 and lint issues resolved