Added QuadTo method

src/Perspex.SceneGraph/Media/StreamGeometryContext.cs

@@ -64,6 +64,16 @@ namespace Perspex.Media
             _impl.BezierTo(point1, point2, point3);
         }
 
+        /// <summary>
+        /// Draws a quadratic Bezier curve to the specified point
+        /// </summary>
+        /// <param name="control">The control point used to specify the shape of the curve.</param>
+        /// <param name="endPoint">The destination point for the end of the curve.</param>
+        public void QuadTo(Point control, Point endPoint)
+        {
+            _impl.QuadTo(control, endPoint);
+        }
+
         /// <summary>
         /// Draws a line to the specified point.
         /// </summary>