Promote Quadrilateral to default

The library now uses the `Quadrilateral` struct when handling sets of four points in `GridSampler` and `PerspectiveTransform`

src/maxicode/detector.rs

@@ -2,7 +2,7 @@
 use num::integer::Roots;
 
 use crate::{
-    common::{BitMatrix, DefaultGridSampler, DetectorRXingResult, GridSampler, Result},
+    common::{BitMatrix, DefaultGridSampler, DetectorRXingResult, GridSampler, Result, Quadrilateral},
     point, Exceptions, Point,
 };
 
@@ -346,26 +346,16 @@ pub fn detect(image: &BitMatrix, try_harder: bool) -> Result<MaxicodeDetectionRe
         // let target_width = (tr.0 - tl.0).round().abs() as u32;
         // let target_height = (br.1 - tr.1).round().abs() as u32;
 
+        let dst = Quadrilateral::new(point(0.0,0.0), point(target_width,0.0), point(target_width,
+            target_height), point(0.0,
+                target_height));
+        let src = Quadrilateral::new(tl, tr, br, bl);
+
         let Ok(bits) = grid_sampler.sample_grid_detailed(
             image,
             target_width.round() as u32,
             target_height.round() as u32,
-            0.0,
-            0.0,
-            target_width ,
-            0.0,
-            target_width,
-            target_height,
-            0.0,
-            target_height,
-            tl.x,
-            tl.y,
-            tr.x,
-            tr.y,
-            br.x,
-            br.y,
-            bl.x,
-            bl.y,
+            dst, src
         ) else {
             if try_harder {
                 continue;