[PATCH 1/2] lib-lda: mail-deliver - Autocreate delivery mailbox via explicit mailbox_...

[PATCH 1/2] lib-lda: mail-deliver - Autocreate delivery mailbox via explicit mailbox_create()

Instead of relying on MAILBOX_FLAG_AUTO_CREATE to have mailbox_open()
implicitly create the target, open it and, on MAIL_ERROR_NOTFOUND,
create it explicitly when lda_mailbox_autocreate is enabled. This makes
the creation go through the normal mailbox_create() path (including ACL
checks) and removes one of the two users of the autocreate mailbox flags.

Gbp-Pq: Name 0001-lib-lda-mail-deliver-Autocreate-delivery-mailbox-via.patch