feat: add util function to get model instances translations

Adds util function which returns a dict of given model's and field's
translations

Refs KER-327

democracy/utils/translations.py

@@ -0,0 +1,16 @@
+from django.conf import settings
+
+
+def get_translations_dict(obj, field_name):
+    """
+    Returns a dict of translations for a given field of a model instance.
+
+    :param obj: The model instance
+    :param field_name: The name of the field
+    :return: A dict with language codes as keys and translations as values
+    """
+
+    return {
+        lang_code: getattr(obj.translations.filter(language_code=lang_code).first(), field_name, "")
+        for lang_code, _ in settings.LANGUAGES
+    }