Colombia will offer tax incentives to companies that get involved in infrastructure and social service projects in areas left underdeveloped or scarred by the country’s 50-year armed conflict, a government official said. The government and leftist Revolutionary Armed Forces of Colombia, or FARC, rebels, signed a landmark ceasefire agreement in Havana this week, clearing the way for a final peace accord as soon as next month. Rafael Pardo, a veteran politician, was appointed by President…