Added phpdoc_seperation fixer

Replaces #845.
I know it happens, i just wonder why it does, as it should not have to be
like that imo. I am not telling you wrong here.

2014-12-15 16:29 GMT+01:00 Graham Campbell <notifications@github.com>:
>
> In Symfony/CS/Fixer/Symfony/PhpdocSeparationFixer.php
> <https://github.com/FriendsOfPHP/PHP-CS-Fixer/pull/853#discussion-diff-21831835>
> :
>
> > +    }
> > +
> > +    /**
> > +     * {@inheritdoc}
> > +     */
> > +    public function getDescription()
> > +    {
> > +        return 'Annotations in phpdocs should be separated correctly.';
> > +    }
> > +
> > +    /**
> > +     * {@inheritdoc}
> > +     */
> > +    public function getPriority()
> > +    {
> > +        // should be run before the PhpdocParamsFixer
>
> It totally matters! I'm 100% confident this happens without even trying
> it. Please stop going on about this, it's not helpful.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/FriendsOfPHP/PHP-CS-Fixer/pull/853/files#r21831835>.
>