message: Add PartialEq trait to FilterType
diff: @@ -78,7 +78,7 @@ use crate::traits::{Enlargeable, Pixel, Primitive};
  /// <td>1170 ms</td>
  /// </tr>
  /// </table>
  -#[derive(Clone, Copy, Debug)]
  +#[derive(Clone, Copy, Debug, PartialEq)]
  pub enum FilterType {
  /// Nearest Neighbor
  Nearest,
  