SongSelect: Add maker identification

requires maker_id(int) column in songs table, and a new "makers" table with maker_id(int), name(text), url(text)

app.py

@@ -107,7 +107,7 @@ def route_api_preview():
 @app.route('/api/songs')
 @app.cache.cached(timeout=15)
 def route_api_songs():
-    songs = query_db('select * from songs where enabled = 1')
+    songs = query_db('select s.*, m.name, m.url from songs s left join makers m on s.maker_id = m.maker_id where enabled = 1')
     
     raw_categories = query_db('select * from categories')
     categories = {}
@@ -127,6 +127,7 @@ def route_api_songs():
         
         category_out = categories[song[11]] if song[11] in categories else ""
         song_skin_out = song_skins[song[14]] if song[14] in song_skins else None
+        maker = {'name': song[18], 'url': song[19]} if song[17] else None
         
         songs_out.append({
             'id': song_id,
@@ -142,7 +143,8 @@ def route_api_songs():
             'type': song_type,
             'offset': song[13],
             'song_skin': song_skin_out,
-            'volume': song[16]
+            'volume': song[16],
+            'maker': maker
         })
 
     return jsonify(songs_out)