Add Russian Phonetic macOS keyboard layout
For the past 18 months I have been using the phonetic macOS Russian keyboard layout on my Mac Book Pro but I recently switched to an Ubuntu workstation, so I wanted to bring that keyboard layout to xkb - the current phonetic layout is very similar but just different enough that it drives my fingers/brain crazy.
Thanks for your consideration in merging this. If I need to open a PR, let me know.
Thanks,
Mark