Add Mobilenet2SSDLite test

The new test works both with TensorRT and cuDNN. Preprocessing and
Postprocessing are missing. Add ClippedReLU (for ReLU6), groups for
Conv2d, additional bias for convolution.

Other minors:
-move the timer in the detector to measure all the
processing time for a given frame (both centernet and yolo);
-add int8 flag.

Signed-off-by: Micaela Verucchi <micaelaverucchi@gmail.com>
Davide Sapienza <sapienza.dav@gmail.com>

src/LayerWgs.cpp

@@ -9,11 +9,7 @@ namespace tk { namespace dnn {
 LayerWgs::LayerWgs(Network *net, int inputs, int outputs, 
                    int kh, int kw, int kl, 
                    std::string fname_weights, bool batchnorm, bool additional_bias, bool final, bool deConv, int groups) : Layer(net, final) {
-                       
-    if(deConv)
-        inputs = inputs/groups;
-    else
-        outputs = outputs/groups;    
+    inputs = inputs/groups;
         
     this->inputs  = inputs;
     this->outputs = outputs;