Add missing __init__.py in MPRIS test dir
Add missing __init__.py in MPRIS test dir

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