Add support for some FIP radio broadcast

fip_current.py

 def get_current():
     """ Return a dict containing currently playing song metadatas """
     datas = get_all()
-    position = datas['levels'][0]['position']
-    item_id = datas['levels'][0]['items'][position]
+    if len(datas['levels'])==2:
+        level = 1
+    else:
+        level = 0
+    position = datas['levels'][level]['position']
+    item_id = datas['levels'][level]['items'][position]
     item = datas['steps'][item_id]
     expt = ['authors', 'title', 'titreAlbum', 'visual', 'lienYoutube']
     for k in expt: