By Timour Azhari and Maayan Lubell BEIRUT/JERUSALEM (Reuters) -Lebanon and Israel have reached a historic agreement demarcating a disputed maritime border between them after years of U.S.-mediated negotiations, officials said on Tuesday. While limited in scope, a finalised deal would mark a significant compromise between neighbours with a history of war and hostility, opening the way for offshore energy exploration and easing a source of recent tensions. “This is a historic achievement that will strengthen Israel’s security, inject billions into Israel’s economy, and ensure the stability of ou…