shuffle and unshuffle of playlist

src/sh/mpv.sh

@@ -30,6 +30,14 @@ mpv_playlist_clear() {
   __mpv_command "playlist-clear"
 }
 
+mpv_playlist_shuffle() {
+  __mpv_command "playlist-shuffle"
+}
+
+mpv_playlist_unshuffle() {
+  __mpv_command "playlist-unshuffle"
+}
+
 mpv_quit() {
   __mpv_command "quit"
 }