message: Implement `std::ops::Add<Vector>` for `Rectangle`
diff: -use crate::{Point, Size};
  +use crate::{Point, Size, Vector};
  /// A rectangle.
  #[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
  @@ -140,3 +140,18 @@ impl From<Rectangle<f32>> for Rectangle<u32> {
  }
  }
  }
  +
  +impl<T> std::ops::Add<Vector<T>> for Rectangle<T>
  +where
  + T: std::ops::Add<Output = T>,
  +{
  + type Output = Rectangle<T>;
  +
  + fn add(self, translation: Vector<T>) -> Self {
  + Rectangle {
  + x: self.x + translation.x,
  + y: self.y + translation.y,
  + ..self
  + }
  + }
  +}
  