changes relative to the spliting of mldataset in data

skluc/convert_image_to_records.py

skluc/data/__init__.py

skluc/examples/fc_nn.py

skluc/examples/fc_nn_cifar.py

skluc/examples/fc_nn_timed.py

skluc/examples/tfrecord_nn.py

skluc/examples/write_read_tfrecords.py

skluc/keras_/kernel_approximation/nystrom_layer.py

skluc/tensorflow_/kernel_approximation/nystrom_layer.py

skluc/test/test_kernel.py

skluc/test/test_mldatasets.py