Added basic wheel functionality

src/py/slots/Slots.py

@@ -0,0 +1,6 @@
+from Wheel import Wheel
+
+class SlotMachine():
+    def __init__(self):
+        jackpot = 0
+        wheel = Wheel()

src/py/slots/Wheel.py

@@ -0,0 +1,22 @@
+class Wheel():
+    def __init__(self, size=3):
+        self.size=size
+        self.icons = list(range(size))
+
+    def roll(self, offset=1):
+        new_icons = list(range(self.size))
+        for i, icon in enumerate(self.icons):
+            new_icons[(i + offset) % len(new_icons)] = icon
+    
+        self.icons = new_icons
+
+
+def main():
+    wheel = Wheel(size=10)
+    print(wheel.icons)
+    wheel.roll(offset=3)
+    print(wheel.icons)
+    
+
+if __name__ == "__main__":
+    main()