a sample of cnpy load int8_t npy

[lix19937]

  #include "cnpy.h"
  
  auto readnpy_int8_t = [](const std::string &npy_name, int read_num) -> std::vector<int8_t>
  {
    cnpy::NpyArray arr = cnpy::npy_load(npy_name);
    std::vector<int8_t> read_vec(read_num);
    auto loaded_data = arr.data<int8_t>();

    for (int i = 0; i < read_num; ++i)
    {
      read_vec[i] = loaded_data[i];
    }
    return read_vec;
  };
  std::vector<int8_t> data_vec = readnpy_int8_t("./out.npy", h * w);