feat: add initial support for positioning

Signed-off-by: Konstantin Fickel <mail@konstantinfickel.de>

src/streamer/localize/localized_shard.py

@@ -0,0 +1,10 @@
+from __future__ import annotations
+from streamer.parse.shard import Shard
+
+
+class LocalizedShard(Shard):
+    location: dict[str, str]
+    children: list[LocalizedShard]
+
+
+__all__ = ["LocalizedShard"]