Correct the state of the `opencv4nodejs` package on the NPM.

You could either

- [deprecate](https://docs.npmjs.com/deprecating-and-undeprecating-packages-or-package-versions) [the `opencv4nodejs` package on the NPM](https://www.npmjs.com/package/opencv4nodejs),
- or better yet, [change the GitHub repository URL](https://github.com/justadudewhohacks/opencv4nodejs/blob/master/package.json), and [invite @UrielCh as a maintainer or transfer the ownership of the package to him](https://docs.npmjs.com/transferring-a-package-from-a-user-account-to-another-user-account). (This way, we could keep using [`opencv4nodejs` maintained by @UrielCh](https://github.com/UrielCh/opencv4nodejs) under the name of `import OpenCV from "opencv4nodejs";`.)

Another good option would be