[TRT] Support RealESRGAN

[wangzijian1010]

This pull request introduces support for TensorRT-based Real-ESRGAN upscaling in the lite module. The most important changes include the addition of a new test function, updates to the models.h file to include the new model, and the implementation of the Real-ESRGAN class for TensorRT.

TensorRT Real-ESRGAN Integration:

• New Test Function:

  • Added test_tensorrt() function in test_lite_realesrgan.cpp to test TensorRT-based Real-ESRGAN upscaling. (examples/lite/cv/test_lite_realesrgan.cpp, examples/lite/cv/test_lite_realesrgan.cppR23-R46)

• Model Header Updates:

  • Included trt_realesrgan.h in the models.h file. (lite/models.h, lite/models.hR137)
  • Added typedef for TRTRealESRGAN and nested it within the upscale namespace. (lite/models.h, [1] [2]

• Real-ESRGAN Implementation:

  • Implemented the TRTRealESRGAN class with methods for preprocessing, detection, and postprocessing in trt_realesrgan.cpp. (lite/trt/cv/trt_realesrgan.cpp, lite/trt/cv/trt_realesrgan.cppR1-R109)
  • Defined the TRTRealESRGAN class in the header file trt_realesrgan.h. (lite/trt/cv/trt_realesrgan.h, lite/trt/cv/trt_realesrgan.hR1-R27)

[DefTruth]

LGTM~