Fixed support for namespaced modules. Closes #199

[jan-molak]

Serenity/JS provides a Jasmine adapter published as a namespaced module @serenity-js/jasmine.

This change adds support for Jasmine loader.js to load namespaced modules and closes #199.

[jan-molak]

@sgravrock looks like Windows tests use OS-dependent paths. Let me know how you'd like to proceed, please.

[sgravrock]

I can think of a few options:

• Modify the failing tests to use a regex that matches the desired URL with or without a drive letter
• Modify the failing tests to figure out the drive letter that will be resolved and build the right expected URL, if on Windows (probably not worth the complexity)
• Go back to converting the absolute path to a URL by hand instead of url.pathToFileURL (would be unfortunate since url.pathToFileURL is a nice improvement, but it doesn't necessarily have to be in this PR)

[jan-molak]

Thanks for the feedback, @sgravrock! I played around with the regex, but it seems like repeating url.pathToFileURL in the test as well might be easier to read:

expect(importShim).toHaveBeenCalledWith(url.pathToFileURL('/the/path/to/the/module').toString());

If you prefer a regex please let me know and I can update the PR.

[sgravrock]

Thanks for the PR.