[PATCHv3] notmuch-show: include Bcc header in json output

[Ethan Glasser-Camp]

Michal Nazarewicz <mpn at google.com> writes:

> From: Michal Nazarewicz <mina86 at mina86.com>
>
> With this change, emacs users can use notmuch-message-headers
> variable to configure notmuch-show display Bcc header.
> ---

This patch looks pretty straightforward and has seen a certain amount of
review so I'm taking off needs-review.

Ethan