The worlds of pop and jazz have always mingled, especially among vocalists. In the ‘40s and ‘50s, such musical icons as Frank Sinatra, Peggy Lee and Ella Fitzgerald were quite adept at straddling both idioms. Today we have artists like Antia Baker, Sting and Nora Jones, who expertly incorporate a variety of genres in their music. Now add vocalist Veronica Martell to that list. On her latest CD, "The Art Of Intimacy" (Apria Records), pop and jazz fuse together in a seamless fashion to create a …