Update cpp launcher and add other improvements

Created by: AlibekovMurad5202

Changes:

• add class OutputTensor for storing output results
• replace dump_output with get_output_tensors, making dump_output a common method
• updates from clang-format
• minor change in readme for pytorch cpp launcher
• change the format for saving validation results (bin file -> .json)
• add io_adapters to validate some models by tflite cpp
• change output message if pytorch cpp benchmark failed to read model file
• fix problem with using folder's path as input parameter for inference_pytorch_cpp.py
• add latency per token metric in openvino, pytorch and onnxruntime launchers