OpenBSD rc.d service + install script (community packaging)

[StathisZ]

Glance has no OpenBSD port or rc.d script. None of the platforms ship one in-tree — the docs point Linux users to write their own systemd unit.

I built a small companion repo for OpenBSD:

• Install script that fetches the official glance-openbsd-amd64 release binary, unmodified.
• A dedicated _glance system user, matching OpenBSD's own daemon convention.
• A standard rc.d script — rcctl start|stop|enable glance works like any base service.

Repo: https://github.com/StathisZ/glance-openbsd

Happy to have it linked from the install docs.