Add BeforeWhileInDoWhile BraceWrapping option

[Eric Baker via cfe-commits]

Code like this:

    do {
        // Some code
    } while (1);

becomes:

    do {
        // Some code
    }
    while (1);

I couldn't think of a better name for the option than BeforeWhileInDoWhile.
I'm open to suggestions!

Also, this is my first attempt at submitting a patch for this project. If
I've done anything wrong, please let me know. Thanks!

--
Thanks,
Eric Baker
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