A Long Island packaging manufacturer will be expanding and relocating with a sizeable lease at a newly built industrial building in Bay Shore. Modern Packaging leased 106,216 square feet at Rockefeller Group’s new 172,622-square-foot building at 55 Paradise Lane. The company will be relocating from about 58,000 square feet it leases at 505 Acorn St. in Deer Park. “Rockefeller Group is excited to add Modern Packaging to Bay Shore in our new, Class A industrial facility at 55