Is your feature request related to a problem? Please describe.

In hyperdivision/hid we use externals as handles for device opaque descriptors, however during debugging it's hard to know what exactly you are working with. I want to preserve the opaqueness of the handles, but it would be nice if I could give these externals a name.

Describe the solution you'd like

Currently externals end up here in util.inspect:

I don't know if this should be another API in N-API, the possibility of setting util.inspect.custom or similar.

Describe alternatives you've considered

object_wrap is another alternative, but comes with much more features and boilerplate than I need. I just want to be able to give human readable names to opaque references for debugging.