add tasks file arborescence in example

skluc/examples/tasks/__init__.py

skluc/examples/tasks/classification/__init__.py

skluc/examples/tasks/classification/omniglot/__init__.py

...les/tasks/classification/omniglot/omniglot_28x28_lenet.py

...es/tasks/classification/omniglot/omniglot_28x28_simple.py

...les/tasks/classification/omniglot/omniglot_32x32_vgg19.py

skluc/examples/tasks/verification/__init__.py

skluc/examples/tasks/verification/omniglot/__init__.py

...ication/omniglot/omniglot_28x28_siamese_networks_lenet.py

...cation/omniglot/omniglot_28x28_siamese_networks_simple.py

...ication/omniglot/omniglot_32x32_siamese_networks_vgg19.py

skluc/main/data/mldatasets/OmniglotDataset.py

skluc/main/keras_/kernel_approximation/nystrom_layer.py