message: support silu activation in darknet
diff: @@ -229,7 +229,7 @@ namespace cv {
  activation_param.set<float>("negative_slope", 0.1f);
  activation_param.type = "ReLU";
  }
  - else if (type == "swish")
  + else if (type == "swish" || type == "silu") // swish is an extension of silu.
  {
  activation_param.type = "Swish";
  }
  