Wednesday’s “Snochi Festival” lineup in Central Square included music by Earl Sweatshirt and a House of Vans pop-up snowboard park featuring demos by pros such as Nick Poohachoff. The festival, put on by the Central Square Cultural District, runs through Thursday.Mark Shanahan can be reached at firstname.lastname@example.org. Follow him on Twitter @MarkAShanahan. Meredith Goldstein can be reached at email@example.com. Follow her on Twitter @MeredithGoldste.