pkg/57922: qemu-ga should be shipped separately from emulators/qemu

[campbell+netbsd%mumble.net@localhost]

>Number:         57922
>Category:       pkg
>Synopsis:       qemu-ga should be shipped separately from emulators/qemu
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Feb 10 20:50:00 +0000 2024
>Originator:     Taylor R Campbell
>Release:        current
>Organization:
The NetBSD Virtualization
>Environment:
>Description:
qemu-ga, the qemu guest agent daemon (https://www.qemu.org/docs/master/interop/qemu-ga.html), is a program that runs in the guest voluntarily let the host coordinate things with it like time changes.

The emulators/qemu package is mainly useful on the host, pulls in a large collection of dependencies like the graphics stack for drawing graphical output from the guest, and weighs over half a gigabyte.

What the guest needs is much more modest and shouldn't need to pull in any of these dependencies, so it should be available in a separate and much smaller package, say sysutils/qemu-guest-agent or sysutils/qemu-ga.
>How-To-Repeat:
try to use qemu-ga in a small VM
>Fix:
Yes, please!