process: move process.features initialization into node.js

Use `internalBinding('config')` to shim the legacy
`process.features`.

PR-URL: https://github.com/nodejs/node/pull/25239


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>