bimstester: features, move spatial structure tests from examples to implemented steps

src/ifcbimtester/bimtester/features/steps/spatial_structure/en.py

@@ -0,0 +1,11 @@
+from behave import step
+
+from bimtester.ifc import IfcStore
+from bimtester.lang import _
+
+
+@step('All buildings have an address')
+def step_impl(context):
+    for building in IfcStore.file.by_type("IfcBuilding"):
+        if not building.BuildingAddress:
+            assert False, f'The building "{building.Name}" has no address.'