templatetags: add model_name

aircox/templatetags/aircox.py

@@ -181,3 +181,8 @@ def is_checkbox(field):
 def is_select(field):
     """Return True if field is a select."""
     return isinstance(field.widget, forms.Select)
+
+
+@register.filter
+def model_name(instance):
+    return instance.__class__.__name__