Add stylefmt object to each file processed, and a "fixed" property to…

[Pilatch]

… show whether stylefmt made changes to that file.

This is especially useful for automating auto-formatting tasks so we know when to stop writing a SCSS file to its destination and thus prevent an infinite loop.

Follows the same object format as ESLint.

[Pilatch]

Ahem Bump!

[Pilatch]

Dood, what gives?

[Pilatch]

Shitter-san, merge pull request kudasai!