Travelers who take a shine to the spookier side of existence may just need to put Estes Park, Colo., on their weekend itinerary. Working Could 2–5, the inaugural Stanley Film Pageant guarantees four days of hauntingly excellent entertainment on the very lodge the place Stephen King dreamed up “The Shining.” “Hanging a horror movie festival collectively on the Stanley Lodge is a dream come real,” competition director Jenny Bloo…