Prototype entries

[pierreburgy]

• I'm submitting a ...

[ ] bug report [x] feature request [ ] question about the decisions made in the repository [ ] question about how to use this project

• Summary

It would be great to prototype entries, so we could do something like:

(async () => {
  const post = await strapi.getEntry('1234');
  post.title = 'A new title';
  await post.update(); // or post.save();
})();

• Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. StackOverflow, personal fork, etc.)