NOJIRA restructed into separate model files

models/item.py

@@ -0,0 +1,13 @@
+class Item:
+    def __init__(self, name: str, amount: int):
+        assert name == name.lower()
+        self.name = name
+        self.amount = amount
+        self.__contains_fries = 'friet' in self.name or 'twister' in self.name
+
+    def __lt__(self: "Item", other: "Item") -> bool:
+        if self.__contains_fries and not other.__contains_fries:
+            return True
+        if not self.__contains_fries and other.__contains_fries:
+            return False
+        return self.name < other.name