[db] Expose db_pl_fetch_byid()

src/db.c

@@ -520,9 +520,6 @@ static __thread struct db_statements db_statements;
 
 
 /* Forward */
-struct playlist_info *
-db_pl_fetch_byid(int id);
-
 static enum group_type
 db_group_type_bypersistentid(int64_t persistentid);
 

src/db.h

@@ -660,6 +660,9 @@ db_pl_ping_items_bymatch(const char *path, int id);
 int
 db_pl_id_bypath(const char *path);
 
+struct playlist_info *
+db_pl_fetch_byid(int id);
+
 struct playlist_info *
 db_pl_fetch_bypath(const char *path);