Add Ability to Generate Inline Sourcemaps

[pgremo]

I'd like to have the ability to generate inline sourcemaps rather than have it in a separate file

[wdavidw]

to be honest, first time i heard of inline sourcemaps, there arent included in coffee-script, isnt it? If so, should we rely on the coffee-inline-map package?

[pgremo]

I did a little research before opening this ticket to gauge the complexity and I looked at how that project was doing it. It looks pretty simple. If you'd like, I might be able to knock together a PR. I don't know how you want to configure a difference between standalone and inline source maps