[*] improve log message for storage view content

[tirivo]

Improve print content of StorageView, limited with 6 values per line.
Examples:

// Example 2: 2D Matrix (2D Tensor)
{
  // Define the shape of the StorageView (12x12 matrix)
  ctranslate2::Shape shape = {12, 12};

  // Create a StorageView of type FLOAT32 and initialize with some values
  ctranslate2::StorageView storage_view(shape, ctranslate2::DataType::FLOAT32);

  // Fill the StorageView with some data
  float data[144];
  for (int i = 0; i < 144; ++i) {
    data[i] = static_cast<float>(i + 1);
  }
  storage_view.copy_from(data, 144, ctranslate2::Device::CPU);

  // Output the contents and metadata of the StorageView
  std::cout << storage_view << std::endl;
}

// Example 3: 3D Tensor
{
  // Define the shape of the StorageView (9x9x9 tensor)
  ctranslate2::Shape shape = {9, 9, 9};

  // Create a StorageView of type FLOAT32 and initialize with some values
  ctranslate2::StorageView storage_view(shape, ctranslate2::DataType::FLOAT32);

  // Fill the StorageView with some data
  float data[729];
  for (int i = 0; i < 729; ++i) {
    data[i] = static_cast<float>(i + 1);
  }
  storage_view.copy_from(data, 729, ctranslate2::Device::CPU);

  // Output the contents and metadata of the StorageView
  std::cout << storage_view << std::endl;
}

Data (2D Matrix):
[[1, 2, 3, ..., 10, 11, 12], 
[13, 14, 15, ..., 22, 23, 24], 
[25, 26, 27, ..., 34, 35, 36], 
..., 
[109, 110, 111, ..., 118, 119, 120], 
[121, 122, 123, ..., 130, 131, 132], 
[133, 134, 135, ..., 142, 143, 144]]
[device:cpu:0, dtype:float32, storage viewed as 12x12]

Data (3D Tensor):
[[[1, 2, 3, ..., 7, 8, 9], 
[10, 11, 12, ..., 16, 17, 18], 
[19, 20, 21, ..., 25, 26, 27], 
..., 
[55, 56, 57, ..., 61, 62, 63], 
[64, 65, 66, ..., 70, 71, 72], 
[73, 74, 75, ..., 79, 80, 81]], 
[[10, 11, 12, ..., 16, 17, 18], 
[19, 20, 21, ..., 25, 26, 27], 
[28, 29, 30, ..., 34, 35, 36], 
..., 
[64, 65, 66, ..., 70, 71, 72], 
[73, 74, 75, ..., 79, 80, 81], 
[82, 83, 84, ..., 88, 89, 90]], 
[[19, 20, 21, ..., 25, 26, 27], 
[28, 29, 30, ..., 34, 35, 36], 
[37, 38, 39, ..., 43, 44, 45], 
..., 
[73, 74, 75, ..., 79, 80, 81], 
[82, 83, 84, ..., 88, 89, 90], 
[91, 92, 93, ..., 97, 98, 99]], 
..., 
[[55, 56, 57, ..., 61, 62, 63], 
[64, 65, 66, ..., 70, 71, 72], 
[73, 74, 75, ..., 79, 80, 81], 
..., 
[109, 110, 111, ..., 115, 116, 117], 
[118, 119, 120, ..., 124, 125, 126], 
[127, 128, 129, ..., 133, 134, 135]], 
[[64, 65, 66, ..., 70, 71, 72], 
[73, 74, 75, ..., 79, 80, 81], 
[82, 83, 84, ..., 88, 89, 90], 
..., 
[118, 119, 120, ..., 124, 125, 126], 
[127, 128, 129, ..., 133, 134, 135], 
[136, 137, 138, ..., 142, 143, 144]], 
[[73, 74, 75, ..., 79, 80, 81], 
[82, 83, 84, ..., 88, 89, 90], 
[91, 92, 93, ..., 97, 98, 99], 
..., 
[127, 128, 129, ..., 133, 134, 135], 
[136, 137, 138, ..., 142, 143, 144], 
[145, 146, 147, ..., 151, 152, 153]]]
[device:cpu:0, dtype:float32, storage viewed as 9x9x9]

[minhthuc2502]

Please fix the pipeline