The “AscenDance” mural has finally kicked into gear. After several weeks of build-up, the project — located on the side of The Greenlining Institute’s headquarters, at 360 14th St. in downtown Oakland — has moved from gridding to sketching to outlining to images being colored and starting to come alive. The past two weeks have represented a giant step forward for the eight-story mural, which is beginning to take on a character as the faces of its subjects are given…