Effects of cold‐water corals on fish diversity and density (European continental margin: Arctic, NE Atlantic and Mediterranean Sea): Data from three baited lander systems - Linley TD; Lavaleye M; Maiorano P; Bergman M; Capezzuto F; Cousins NJ; Duineveld G; Shields MA; Sion L; Tursi A; Priede IG; D'Onghia G (Deep Sea Research Part II: Topical Studies in Oceanography)