feat: open-vm-tools package for x86

[GoliathLabs]

I've run black as well, not sure if I should revert it.

[grische]

@GoliathLabs black formatting would introduce too many changes in comparison to the upstream variants and comparison much harder.

[maurerle]

One might as well add qemu-ga (only to x86-64) for qemu-guest-agent - though grische said, that he had some build failures with ffmuc firmware for this.
See https://github.com/ffac/site/blob/v2023.2.x/image-customization.lua#L186-L192

Furthermore, this is missing the respective change in the site.mk (or image-customization.lua in the next branch)