What began as a code dispute over one homeowner's backyard hens has grown into a wider debate in Casselberry, Florida, over sustainability, family life, and whether chickens have a place in a suburban city. The matter is now set to go before the Casselberry City Hall. What's happening? Lindsay Feist, a Casselberry resident, said she thought she was following the rules when she started keeping hens. Then, according to WKMG ClickOrlando, a code co…