pkg/55553: Add new port: www/unit

[osa%FreeBSD.org@localhost]

>Number:         55553
>Category:       pkg
>Synopsis:       Add new port: www/unit
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Aug 08 22:35:00 +0000 2020
>Originator:     Sergey Osokin
>Release:        NetBSD 9.0
>Organization:
>Environment:
NetBSD netbsd 9.0 NetBSD 9.0 (GENERIC) #0: Fri Feb 14 00:06:28 UTC 2020  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64

>Description:
Add new pkgsrc: www/unit.

NGINX Unit is a lightweight dynamic open-source server for diverse
web applications; to install it, see here.

Built from scratch, Unit can run web apps in different language
versions; fully configurable in runtime with zero interruption, it
enables on-the-fly granular management for engineering and operations.
>How-To-Repeat:

>Fix: