BIMTester now operates on single feature files, which heavily improves usability

src/ifcbimtester/bimtester/lang.py

@@ -0,0 +1,15 @@
+import gettext
+
+translation = None
+
+def _(message):
+    if translation:
+        return translation(message)
+    return message
+
+
+def switch_locale(locale_dir, locale_id="en"):
+    global translation
+    newlang = gettext.translation("messages", localedir=locale_dir, languages=[locale_id])
+    newlang.install()
+    translation = newlang.gettext