The low winter sun shines piercingly into Kenny Jacobs’s corner office, causing him to squint as our interview begins. Jacobs hops up and lowers the grey blinds shielding us from the sun and the view of the runaway in Dublin Airport where a Ryanair plane is landing gracefully.  Jacobs is a ball of energy, who on January 9 will be two years in the job as chief executive of the Dublin Airport Authority (DAA), the state-owned business with revenues of more than €1 billion and Ebitda of more than €350 million.  Jacobs is chatty, and, no sooner had I told…