Add EfficientFormer

Author: rwightman

timm/models/__init__.py

@@ -13,6 +13,7 @@
 from .dla import *
 from .dpn import *
 from .edgenext import *
+from .efficientformer import *
 from .efficientnet import *
 from .ghostnet import *
 from .gluon_resnet import *