cargo fmt

[thinkrapido]

Hi,

it would benefit the code base, if we apply cargo fmt before every commit.

I prepared a pull request (currently not added to the repo).
I just want to hear from you developers, how you stand to this aspect for a consistent code base.

There are some issues with the code base, like indentation or tool large lines.
This would be consolidated with cargo fmt

[thinkrapido]

#40

[ballsteve]

I think it is a good idea.