Support FMPS tags
FMPS tags are used to store a float rating between 0 and 1 and some useful information such as play count.
This feature request is similar to #64 , but more relevant in my opinion since FMPS tags apply to multiple audio file formats (as opposed to mp3) and they are specified by freedesktop.org (https://www.freedesktop.org/wiki/Specifications/free-media-player-specs/).