Installation view of “Mavis Pusey: Mobile Images,” Institute of Contemporary Art (ICA), University of Pennsylvania. | Photo: Constance Mensch   A DECADE AGO, curator Hallie Ringle embarked upon a fact-finding mission to learn about the life and work of Mavis Pusey (1928-2019), the Jamaican-American artist who pursued fashion before concentrating on painting and printmaking. Pusey...