Add basic test_created_playlist_is_persisted test
Add basic test_created_playlist_is_persisted test

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