message: fix SharpInstance now Sharp
diff: -import * as sharp from 'sharp';
  +import { Sharp } from 'sharp';
  import BitMatrix from '../../../core/common/BitMatrix';
  export default class SharpImage {
  public constructor(
  - private wrapper: sharp.SharpInstance,
  + private wrapper: Sharp,
  private buffer: Uint8ClampedArray,
  private width: number,
  private height: number
  