SOUP BARS; NAMELY, CABINET-MOUNTED, SELF-SERVICE FOOD STORAGE AND SERVING APPLIANCES COMPRISING, IN COMBINATION, FOOD WARMING UNITS FOR MAINTAINING BULK QUANTITIES OF SOUP IN HEATED, READY-TO-SERVE CONDITION FOR SELF-SERVICE DISPENSING AND SALE TO CONSUMERS, AND FOOD REFRIGERATING UNITS FOR STORAGE CONTAINERS OF FROZEN SOUP FOR SELF-SERVICE DISPENSING AND SALE TO CONSUMERS