Add systemd unit and script to fix AYANEO AIR Phased Audio

[pastaq]

No description provided.

[pastaq]

requires adding swh-plugins as a dependency

To test: move the usr/lib/systemd/user/aya-air-audio.service and usr/bin/device-quirks/aya-neo-air-audio-phase-fix to their respective root folders, start the service as --user
Play a video that checks the phase.
https://youtu.be/2NWazG1T7ps

Will leave enabling it to the user, as some later production units are not affected.

[Samsagax]

After this is merged, PKGBUILD needs update.
install /usr/lib/systemd/user/aya-air-audio.service
install /usr/bin/device-quirks/aya-neo-air-audio-phase-fix
add swh-plugins as a dependency

[Samsagax]

Should make a Wiki or a Readme entry to clarify some of these quirks. I'm perfectly fine with this as an optional dependency so the package can be installed and the service inactive.
Otherwise it LGTM

[pastaq]

Wiki makes sense, and we can link to it in the official wiki.

[Samsagax]

I guess the PKGBUILD needs to be updated again with this one right?

[pastaq]

Yes. I'm working on the wiki format but it's a drag.

[Samsagax]

PKGBUILD updated