added spotify adapter
added spotify adapter

RJacksonm1/Embed,philrennie/Embed,davereid/Embed,thenextweb/Embed,JanPetterMG/Embed,daveross/Embed,Soullivaneuh/Embed,zyuhel/Embed,okatsuralau/Embed,younes0/Embed,mburtscher/Embed,oscarotero/Embed