Use Dims for buffer dimensions

Author: jdahlstrom

core/src/render/raster.rs

@@ -253,7 +253,7 @@ mod tests {
 
     #[test]
     fn shared_edge_should_not_have_gaps_or_overdraw() {
-        let mut buf = Buf2::new(20, 10);
+        let mut buf = Buf2::new((20, 10));
 
         let verts = [
             vec3(8.0, 0.0, 0.0),

core/src/render/tex.rs

@@ -236,7 +236,7 @@ mod tests {
     #[rustfmt::skip]
     fn tex() -> Texture<Buf2<Color3>> {
         Texture::from(Buf2::new_from(
-            2, 2, vec![
+            (2, 2), vec![
                 rgb(0xFF, 0, 0),
                 rgb(0, 0xFF, 0),
                 rgb(0, 0, 0xFF),