While we prepare for the release of Paul McCartney's deluxe edition of "Flowers in the Dirt", this week we look at how Paul and Elvis first met, their songwriting collaborations which will soon be coming out, their collective live work and more.      Included is "The One After 909" from the Royal College of Music benefit, Elvis and the Fairfield four doing a stunning version of "That Day is Done" on the Late Show with David Letterman, EC's live performance of "Tommy's Coming Home" from Carnegie Hall in 2014, a bit of commentary from the "Concert for Linda", and Mrs. McManus (Diana Krall) doing a live version of "If I Take You Home Tonight".