Boilerplate-less way to write node-addon-api code

[ajihyf]

I've implemented https://github.com/ajihyf/node-addon-api-helper which may help to write boilerplate-less node-addon-api code. There is another issue https://github.com/nodejs/node-addon-api/issues/294 but not active for a while. Though WebIDL isn't supported currently, the approach is more straightforward in a pure header way. Feedback is welcome. :)

[mhdawson]

It's great to see higher layers build on node-addon-api. I won't have time to review in detail but just wanted to say that further layers on top were one of the things we were hoping for and there are many things we won't add to node-addon-api itself but which make sense in higher layer wrappers.

[github-actions[bot]]

This issue is stale because it has been open many days with no activity. It will be closed soon unless the stale label is removed or a comment is made.