If you want to horse around, head over to Royal Oak. Literally. Winter Blast, the annual wintertime community festival held in downtown Royal Oak kicked off Friday and has been going on through the weekend. There are plenty of attractions for family fun: an ice skating rink, moving dragon statues, live music, food trucks, artisan shops and, notably, two horses. Sherwood, 16, and Charlie, 17, are both Percheron horses who have been hanging out in the medieval corner of Winter Blast since Friday. Sherwood, who has a light blonde coat, and Charlie, with a fuzzy black coat, were stabled…..