I don't think there is a plugin like that, but you can use m3u files to sort the tracks.
Make a text file in your track folder, rename the .txt extension to .m3u, and type in the track names in the order you want them to be played.
example m3u text:
track1.mp3
track2.mp3
track3.mp3
example m3u in music folder playing tracks in subfolders:
folder1/track1.mp3
folder2/track1.mp3
folder1/track2.mp3
folder2/track2.mp3
example m3u in folder1 calling on a track in folder2
track1.mp3
track2.mp3
../folder2/track1.mp3
track3.mp3
..or something like that ;p