AT&T laid out a broad plan to upgrade both its wireline and wireless networks and keep its growth moving, CNET reports. Project Velocity IP, or VIP, consists of an investment of $14 billion over the next three years — $8 billion for wireless and $6 billion for wireline — and is designed to expand the company’s 4G LTE coverage on the wireless side and faster service, more fiber-optic lines, and expanded U-Verse availability on the landline side…