add playlists test for writing EXTM3U files
add playlists test for writing EXTM3U files

mopidy/mopidy,jcass77/mopidy,priestd09/mopidy,swak/mopidy,jodal/mopidy,mokieyue/mopidy,mokieyue/mopidy,rawdlite/mopidy,pacificIT/mopidy,ZenithDK/mopidy,kingosticks/mopidy,dbrgn/mopidy,bacontext/mopidy,woutervanwijk/mopidy,kingosticks/mopidy,tkem/mopidy,bencevans/mopidy,SuperStarPL/mopidy,abarisain/mopidy,vrs01/mopidy,adamcik/mopidy,liamw9534/mopidy,jmarsik/mopidy,pacificIT/mopidy,quartz55/mopidy,pacificIT/mopidy,mokieyue/mopidy,ZenithDK/mopidy,glogiotatidis/mopidy,dbrgn/mopidy,ali/mopidy,abarisain/mopidy,bencevans/mopidy,kingosticks/mopidy,bencevans/mopidy,bacontext/mopidy,vrs01/mopidy,bacontext/mopidy,jodal/mopidy,ali/mopidy,ali/mopidy,diandiankan/mopidy,tkem/mopidy,hkariti/mopidy,glogiotatidis/mopidy,hkariti/mopidy,hkariti/mopidy,ZenithDK/mopidy,rawdlite/mopidy,diandiankan/mopidy,adamcik/mopidy,mokieyue/mopidy,dbrgn/mopidy,dbrgn/mopidy,glogiotatidis/mopidy,mopidy/mopidy,jcass77/mopidy,priestd09/mopidy,jcass77/mopidy,liamw9534/mopidy,jmarsik/mopidy,vrs01/mopidy,quartz55/mopidy,bencevans/mopidy,bacontext/mopidy,diandiankan/mopidy,glogiotatidis/mopidy,jodal/mopidy,tkem/mopidy,jmarsik/mopidy,swak/mopidy,SuperStarPL/mopidy,ZenithDK/mopidy,ali/mopidy,SuperStarPL/mopidy,quartz55/mopidy,mopidy/mopidy,jmarsik/mopidy,rawdlite/mopidy,tkem/mopidy,pacificIT/mopidy,priestd09/mopidy,adamcik/mopidy,SuperStarPL/mopidy,swak/mopidy,vrs01/mopidy,rawdlite/mopidy,diandiankan/mopidy,woutervanwijk/mopidy,swak/mopidy,quartz55/mopidy,hkariti/mopidy