feat(*): Add hay

hay.py

@@ -0,0 +1,14 @@
+import helpers
+
+def till_and_plant():
+    if get_ground_type() != Grounds.Grassland:
+        till()
+    if get_entity_type() == Entities.Grass:
+        helpers.harvest_if_possible()
+
+def harvest_hay():
+    for x in range(get_world_size()):
+        for y in range(get_world_size()):
+            till_and_plant()
+            move(North)
+        move(East)