Fix namespace wrapper issue across multiple files

[marsrobertson]

In some places: const { namespaceWrapper } = require('./_koiiNode/koiiNode');

Depending on the folder structure may need to add .. to indicate parent directory.

For example here:

ezsandbox/Lesson 2/file-sharing/after/task/fileUtils/storeFile.js

Line 8 in 281008e

const basePath = await namespaceWrapper.getBasePath();

And here:

ezsandbox/Lesson 2/upnp-basics/after/routes.js

Line 7 in efafc2d

const state = await namespaceWrapper.getTaskState();

(the list above is non-exhaustive)

[labrocadabro]

This will be fixed by #68 - we're now using an NPM package.