Roscoe  by William Kennedy Viking, 2002, $24.95, 291 pages, ISBN 0-670-03029-5) by William Kennedy I don’t know about you, but from my point of view, it seems like these days are dominated politics.  We’re being force-fed a steady diet of it, like geese being prepared for goose-liver pate’ in a gourmet restaurant, at least until the fall slaughter, er, ah, I meant to say election, when it will all