Tools to convert ONNX files (NCHW) to TensorFlow format (NHWC)

• Modified the tests folder so that it is not included in the installer
• Reviewed CI execution conditions
• Automatically run conversion tests for 42 different models when pull requests are received |No.|Model|Pass| |:-:|:-|:-:| |1|age_googlenet.onnx|:heavy_check_mark:| |2|arcfaceresnet100-8.onnx|:heavy_check_mark:| |3|baseline_simplified.onnx|:heavy_check_mark:| |4|bvlcalexnet-12.onnx|:heavy_check_mark:| |5|caffenet-12.onnx|:heavy_check_mark:| |6|densenet-12.onnx|:heavy_check_mark:| |7|digits.onnx|:heavy_check_mark:| |8|efficientformer_l1.onnx|:heavy_check_mark:| |9|efficientnet-lite4-11_nchw.onnx|:heavy_check_mark:| |10|effnet_opset11_dynamic_axis.onnx|:heavy_check_mark:| |11|emotion-ferplus-8_rename.onnx|:heavy_check_mark:| |12|face_detection_yunet_2022mar.onnx|:heavy_check_mark:| |13|face_recognition_sface_2021dec-act_int8-wt_int8-quantized.onnx|:heavy_check_mark:| |14|face_recognition_sface_2021dec.onnx|:heavy_check_mark:| |15|gender_googlenet.onnx|:heavy_check_mark:| |16|inception-v2-9.onnx|:heavy_check_mark:| |17|mobilenetv2-12.onnx|:heavy_check_mark:| |18|mosaic_11.onnx|:heavy_check_mark:| |19|mosaic-9.onnx|:heavy_check_mark:| |20|movenet_multipose_lightning_192x256_p6.onnx|:heavy_check_mark:| |21|nanodet-plus-m_416.onnx|:heavy_check_mark:| |22|object_tracking_dasiamrpn_kernel_cls1_2021nov.onnx|:heavy_check_mark:| |23|object_tracking_dasiamrpn_kernel_r1_2021nov.onnx|:heavy_check_mark:| |24|object_tracking_dasiamrpn_model_2021nov.onnx|:heavy_check_mark:| |25|qlinear_conv_tensor_test.onnx|:heavy_check_mark:| |26|rcnn-ilsvrc13-9.onnx|:heavy_check_mark:| |27|regnet_x_400mf.onnx|:heavy_check_mark:| |28|ResNet101-DUC-12.onnx|:heavy_check_mark:| |29|resnet18-v1-7.onnx|:heavy_check_mark:| |30|resnet50-v1-12.onnx|:heavy_check_mark:| |31|resnet50-v2-7.onnx|:heavy_check_mark:| |32|retinanet-9.onnx|:heavy_check_mark:| |33|squeezenet1.0-12.onnx|:heavy_check_mark:| |34|super-resolution-10.onnx|:heavy_check_mark:| |35|tinyyolov2-8.onnx|:heavy_check_mark:| |36|version-RFB-640.onnx|:heavy_check_mark:| |37|yolact_edge_mobilenetv2_550x550.onnx|:heavy_check_mark:| |38|yolov7_tiny_head_0.768_post_480x640.onnx|:heavy_check_mark:| |39|yolox_nano_192x192.onnx|:heavy_check_mark:| |40|yolox_nano_416x416.onnx|:heavy_check_mark:| |41|yolox_s.onnx|:heavy_check_mark:| |42|zfnet512-12.onnx|:heavy_check_mark:|

• Implement tests for model transformations by @PINTO0309 in https://github.com/PINTO0309/onnx2tf/pull/23

Full Changelog: https://github.com/PINTO0309/onnx2tf/compare/1.1.33...1.1.34