An offbeat curatorial conceit—sleepwalking—formed the programming context for Dublin-based artist Jesse Jones’s recent exhibition “The Trilogy of Dust.”Aiming to provide audiences with what the gallery termed a “stretched-out” encounter with artists’ work, “Sleepwalkers: Production as Process,” a series of solo exhibitions and site-specific commissions at The Hugh Lane, has thus promoted projects in progress by creating space for inchoate, early-stage creative propositions as well as for presentations that have reached a much more evolved, gallery-ready state. (Follow-up installments