Created new board game classes

classes/boardgame.py

@@ -1,4 +1,5 @@
 from pydantic import BaseModel, HttpUrl
+from datetime import date
 
 class BoardGame(BaseModel):
     id: int
@@ -14,6 +15,16 @@ class BoardGame(BaseModel):
     min_age: int
     all_expansion_ids: list[int]
 
-
 class BoardGameExpansion(BoardGame):
-    pass
+    pass
+
+class CollectionBoardGame(BoardGame):
+    price_paid: float
+    acquisition_date: date
+    acquired_from: str
+
+class CollectionBoardGameExpansion(CollectionBoardGame):
+    pass
+
+class WishlistBoardGame(BoardGame):
+    wishlist_priority: int