Assign control to cost items and UX Workschedules and Costchedules cleanup

src/ifcopenshell-python/ifcopenshell/api/cost/data.py

@@ -38,7 +38,10 @@ class Data:
             del data["CostValues"]
             del data["CostQuantities"]
             data["RelatedObjects"] = []
+            data["Controls"] = []
             for rel in cost_item.IsNestedBy:
                 [data["RelatedObjects"].append(o.id()) for o in rel.RelatedObjects if o.is_a("IfcCostItem")]
+            for rel in cost_item.Controls:
+                [data["Controls"].append(o.id()) for o in rel.RelatedObjects or []]
             cls.cost_items[cost_item.id()] = data
         cls.is_loaded=True

src/ifcopenshell-python/ifcopenshell/api/cost/edit_cost_item.py

@@ -0,0 +1,10 @@
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {"cost_item": None, "attributes": {}}
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        for name, value in self.settings["attributes"].items():
+            setattr(self.settings["cost_item"], name, value)