Support for 8-bit quantization with TensorRT

Overview

This merge request implements support for 8-bit quantization with TensorRT.

Changes Made

Added BatchStream.hpp and IInt8EntropyCalibrator.hpp. These additions enable the processing and fetching of calibration data necessary for TensorRT's 8-bit quantization.

Implemented calibration methods to:

• Select a pre-existing calibration table.
• Specify the folder containing calibration data.

TODO

• Add other calibrators and allow users to implement/use their own.
• Assist users in transforming their data into usable calibration data.