Add ResNet as embedding model (#1472)

* Add ResNet embedding model

* Minor

* Add reference

* Update init

* Bug fix for one channel input

* Update init

* Add test for ResNet embedding model for image like data

* Update documentation and add 1D Resnet

* Update tests

* Apply suggestions from code review

Co-authored-by: manuelgloeckler <38903899+manuelgloeckler@users.noreply.github.com>

* Update sbi/neural_nets/embedding_nets/resnet.py

* avoid nasty merge conflict

* formatting

---------

Co-authored-by: Jan <janfb@users.noreply.github.com>
Co-authored-by: manuelgloeckler <38903899+manuelgloeckler@users.noreply.github.com>
Co-authored-by: manuelgloeckler <manu.gloeckler@hotmail.de>

Author: 3 people

sbi/neural_nets/__init__.py

@@ -10,6 +10,11 @@
 
 def __getattr__(name):
     if name in [
+        "CNNEmbedding",
+        "FCEmbedding",
+        "PermutationInvariantEmbedding",
+        "ResNetEmbedding1D",
+        "ResNetEmbedding2D",
         "CausalCNNEmbedding",
         "CNNEmbedding",
         "FCEmbedding",

sbi/neural_nets/embedding_nets/__init__.py

@@ -5,3 +5,7 @@
 from sbi.neural_nets.embedding_nets.permutation_invariant import (
     PermutationInvariantEmbedding,
 )
+from sbi.neural_nets.embedding_nets.resnet import (
+    ResNetEmbedding1D,
+    ResNetEmbedding2D,
+)