Add dxvk-bin packages as a binary package on manjaro repos

[Yochanan]

@system

Please read before requesting the addition of a package to the Manjaro repos:

Be aware: unless there’s an obvious need (or e.g. the package is unique) the answer will probably be “no”, and especially so if it’s already in the AUR.

Things like DXVK, VKD3D, etc. are automatically installed in userspace via things like lutris or heroic-games-launcher. Versions can be managed with protonup-qt if desired.