Black Irish by Stephan Talty Ballentine Books, $26.00, 320 pages, ISBN 978-0-345-53806-2 Are you familiar with the term “Black Irish?” It refers not to the color of one’s skin, but to the color of one’s hair.  The black Irish are descendents of the survivors of King Phillip of Spain’s Spanish Armada, a fleet of warships sent in 1588 to invade England.  The Armada was defeated by the British Navy,