New features

- Added support for INT8 calibration
- Added support for non square models
- Updated mAP comparison between models

examples/multiple_inferences/pgie/config_infer_primary.txt

@@ -4,10 +4,11 @@ net-scale-factor=0.0039215697906911373
 model-color-format=0
 custom-network-config=pgie/yolo.cfg
 model-file=yolo.weights
-model-engine-file=model_b1_gpu0_fp16.engine
+model-engine-file=model_b1_gpu0_fp32.engine
+#int8-calib-file=calib.table
 labelfile-path=labels.txt
 batch-size=1
-network-mode=2
+network-mode=0
 num-detected-classes=2
 interval=0
 gie-unique-id=1