Merge pull request #12596 from l-bat:l-bat/shufflenet_onnx

* Add Shufflenet support in ONNX

* Add test for transpose layer

modules/dnn/src/layers/permute_layer.cpp

@@ -132,8 +132,6 @@ public:
 
         for (size_t i = 0; i < inputs.size(); i++)
         {
-            CV_Assert(inputs[i].size() == 4);
-            CV_Assert(inputs[i][2] == shapeBefore[2] && inputs[i][3] == shapeBefore[3]);
             CV_Assert(total(inputs[i]) == total(shapeAfter));
             outputs.push_back(shapeAfter);
         }