added HLS and ISM support to embed.js
added HLS and ISM support to embed.js

rbouqueau/mistserver,rbouqueau/mistserver,rbouqueau/mistserver,DDVTECH/mistserver,DDVTECH/mistserver,DDVTECH/mistserver,DDVTECH/mistserver,rbouqueau/mistserver,DDVTECH/mistserver,rbouqueau/mistserver