Perl6::Pod::Parser::Doformatted - handle :formatted configuration option

        =config head2  :like<head1> :formatted<I>
        =config head1  :formatted<B U>  :numbered

This option specifies that the contents of the block should be treated as if they had one or more formatting codes placed around them.

For example, instead of:

        =for comment
            The next para is both important and fundamental,
            so doubly emphasize it...

        =begin para
        B<I<
        Warning: Do not immerse in water. Do not expose to bright light.
        Do not feed after midnight.
        >>
        =end para

you can just write:

        =begin para :formatted<B I>
        Warning: Do not immerse in water. Do not expose to bright light.
        Do not feed after midnight.
        =end para

The internal representations of these two versions are exactly the same, except that the second one retains the :formatted option information as part of the resulting block object.

Like all formatting codes, codes applied via a :formatted are inherently cumulative. For example, if the block itself is already inside a formatting code, that formatting code will still apply, in addition to the extra "basis" and "important" formatting specified by :formatted<B I>.