Fix #1266. Standardise BIMTester quotes, always translate, and refactor.

src/ifcbimtester/examples/steps/attributes_psets_de.py

@@ -0,0 +1,18 @@
+from behave import step
+
+import attributes_psets_methods as apm
+from utils import switch_locale
+
+
+the_lang = "de"
+
+
+@step("An alle {ifc_class} Bauteile ist im PSet {pset} das Attribut {aproperty} angehängt")
+def step_impl(context, ifc_class, aproperty, pset):
+    switch_locale(context.localedir, the_lang)
+    apm.eleclass_has_property_in_pset(
+        context,
+        ifc_class,
+        aproperty,
+        pset
+    )