Larry Ellison, co-founder and board chairman of Oracle Corp., on Thursday christened in Austin what company executives call the home of the “workforce of the future,” which they hope can lure the young talent coveted by major tech employers. Ellison was speaking at the grand opening of the new Oracle office in the Texas capital; work was recently completed on the initial phase of 560,000 square feet spread across a pair of office buildings. The gleaming facility, just outside downtown Austin…