doc, src: sort + fill up cli options and env vars

* Alphabetize the command line options and environment
  variables in doc/api/cli.md for consistency and readability.

* Update doc/api/cli.md to include command line options
  being printed in the `node.PrintHelp()` function in src/node.cc
  but weren't otherwise documented in the cli spec. Options added
  include:

  --napi-modules
  --v8-pool-size=num
  --experimental-modules
  --experimental-vm-modules

* ASCII sort the node man page command line options.
  This change brings sort order consistency between the
  cli options displayed in doc/node.1 and the cli options
  enumerated in other areas of the project.

  Also rearrange the language for `--use-bundled-ca`, `--use-openssl-ca`
  to correspond with the order of the options as displayed.

* Update `node.PrintHelp()` function to return command line options
  and environment variables sorted in ASCII order. Additionally,
  add missing options as sourced from doc/api/cli.md. Options
  added include `--`, `--help` and the `NODE_PRESERVE_SYMLINKS`
  environment variable.

  Also update the comments in the `node.PrintHelp()` method
  to C++ style.

* Create tests to validate that the newly ASCII sorted
  cli options in the `node.PrintHelp()` function are being
  returned according to build configurations as expected.

PR-URL: nodejs#19878
Refs: nodejs#19814
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: James M Snell <jasnell@gmail.com>