feat: add region_id attr to Entity

Author: NumberPigeon

sc2reader/objects.py

@@ -135,6 +135,9 @@ def __init__(self, sid, slot_data):
         toon_handle = self.toon_handle or "0-S2-0-0"
         parts = toon_handle.split("-")
 
+        #: The Battle.net region id the entity is registered to
+        self.region_id = int(parts[0])
+
         #: The Battle.net region the entity is registered to
         self.region = GATEWAY_LOOKUP[int(parts[0])]