Reorganize repo (#8580)

* Put models in subfolders

* Styling

* Fix imports in tests

* More fixes in test imports

* Sneaky hidden imports

* Fix imports in doc files

* More sneaky imports

* Finish fixing tests

* Fix examples

* Fix path for copies

* More fixes for examples

* Fix dummy files

* More fixes for example

* More model import fixes

* Is this why you're unhappy GitHub?

* Fix imports in conver command

tests/test_modeling_tf_funnel.py

@@ -26,7 +26,7 @@ from .test_modeling_tf_common import TFModelTesterMixin, ids_tensor
 if is_tf_available():
     import tensorflow as tf
 
-    from transformers.modeling_tf_funnel import (
+    from transformers import (
         TFFunnelBaseModel,
         TFFunnelForMaskedLM,
         TFFunnelForMultipleChoice,