EAST BOSTON — Struggling families and elders have support to help them obtain food stamp benefits in this tough economy. Project Bread, the state’s leading antihunger organization, has granted $15,600 to Action for Boston Community Development – Child Care Choices of Boston (ABCD), a community-based organization providing over 6,000 low-income families with access to child care. The grant enables ABCD to help more families take advantage of the federal Food Stamp Program.