Use cross-spawn to help with Windows issues.

[dominic-p]

Fixes #180

This is a work in progress because I honestly couldn't figure out how to test it locally with the combination of tools that I don't really use: lerna + typescript + yarn.

Is there a contributing guide somewhere that I missed, or maybe you walk me through how to test locally?

[AJRdev]

@dominic-p How to test locally is not really specific to this project, it is the same for every npm package development :-)

Usually you use a test application that you link to your local package ( this link might help : https://dev.to/vcarl/testing-npm-packages-before-publishing-h7o ) to test your new features.

You can also use in the repo the command yarn test to check if your changes didn't break any tests.

[dominic-p]

Thanks for the tip. I'm familiar with testing basic npm packages, but I've never worked with lerna or yarn workspaces before. I'll give npm pack a try and let you know when I have some time.