net/xapsd: New port: Apple push notifications daemon for dovecot

[fuz]

Summary

net/xapsd: New port: Apple push notifications daemon for dovecot

Apple push notification daemon for dovecot.

Together with dovecot-xaps-plugin, this will enable push email
for iOS devices that talk to your dovecot IMAP server.

WWW: https://github.com/freswa/dovecot-xaps-daemon

Submitter becomes maintainer.  Is already maintainer of other ports.

PR:		269748
Approved by:	... (mentor)

Test Plan

Tested with Poudriere on i386 amd64 FreeBSD 12.4 13.1.
Arm64 test results pending. See http://fuz.su/~fuz/freebsd/batch5

[flo]

Approved.