[PATCH 09/11] Add decryption of PGP/MIME-encrypted parts with --decrypt.

This adds support for decrypting PGP/MIME-encrypted parts to notmuch-show and notmuch-reply. The --decrypt option implies --verify. Once decryption (and possibly signature verification) is done, a new part_encstatus formatter is emitted, the part_sigstatus formatter is emitted, and the entire

[PATCH 09/11] Add decryption of PGP/MIME-encrypted parts with --decrypt.

This adds support for decrypting PGP/MIME-encrypted parts to notmuch-show and notmuch-reply. The --decrypt option implies --verify. Once decryption (and possibly signature verification) is done, a new part_encstatus formatter is emitted, the part_sigstatus formatter is emitted, and the entire