Cannot use standalone sails-disk

**Node version**: v12.13
**Sails version** _(sails)_: none
**DB adapter & version** _(e.g. sails-mysql@5.55.5)_: sails-disk

Hello all, I'm trying to use waterline + sails-disk but when I require/import the adapter from "sails-disk" I encounter two errors:

`Cannot find module '/machines/cp'`

Error [ImplementationError]: Could not find `cp`, one of the modules in `pkg.machinepack.machines`.

Does anyone have any ideas?

Cheers!

Reproduce the standalone waterline plus sails-disk import with Node v12.13 and inspect the adapter entry point around the reported `/machines/cp` and `pkg.machinepack.machines` errors. Done means the adapter can be required outside Sails without either error, with a regression check for that import path.

Written by the indexing model from the issue text.