COLIN FIRTH Last week – the Oscars.  This week – Vanity Fair.  Every week deserves a dose of Mr. Firth.  Handsome and elegant with disarming British wit, this talented and considerate actor is the picture of perfection.  As a designer, aesthete and woman I can’t get enough.  After all, a girl cannot live on interiors and fashion alone. Ladies beware, you too may be crushing on Colin before this post is through.                                                         SOME OF MY FAVORITE FIRTH FILMWORK: Apartment Zero Valmont Pride and Prejudice…