Add __dirname and __filename on ES Modules

[juanarbol]

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

Describe the solution you'd like
Would be nice to add __dirname, and __filename. to ES Modules, I've read the docs, but also read TC39 proposal, they don't decline using this variables.

Describe alternatives you've considered
I have no idea. By the way, I've added __filename and __dirname properties to import.meta instead of suggestion of how to get these values.

[juanarbol]

cc: @ryzokuken

[devsnek]

Duplicate of nodejs/modules#121