Initialise an empty project

[alex-saunders]

It would be good to provide functionality for empty/fresh projects (i.e. those without a package.json). In this case, the user would be alerted that this is a fresh project and guided through the process of executing npm init in order to generate a package.json file. All the options available through npm init would be available through the GUI, allowing full control. However, the options would be thoroughly explained.

Not sure the best UX for this - maybe a series of onboarding style modals (like here), though i'm up for discussion on this.

[alex-saunders]

I'll be working on this if no one else has already started