Long before there were hit musicals like “The Producers,” “Spamalot” and “Avenue Q,” there were theatrical productions known as “comic operas.”One of the most famous was Gioachino Rossini’s “The Barber of Seville,” which premiered in Rome in 1816 and will now be presented on selected dates through Oct. 27 at the Lyric Opera of Chicago, 20 N. Upper Wacker Drive …