[API][Torch] Save/Load transformations

[daniil-lyakhov]

Changes

model.nncf.get_config method and nncf.torch.load_from_config function are presented

Reason for changes

To enable saving/loading NNCFNetwork transformations

Related tickets

129586

Tests

tests/torch/test_serialization.py is updated

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 15 lines in your changes are missing coverage. Please review.

Project coverage is 29.86%. Comparing base (d507585) to head (f8811da).

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #2659       +/-   ##
============================================
- Coverage    89.25%   29.86%   -59.39%     
============================================
  Files          495      495               
  Lines        48085    45986     -2099     
============================================
- Hits         42917    13735    -29182     
- Misses        5168    32251    +27083     

Files	Coverage Δ
nncf/torch/__init__.py	0.00% <0.00%> (-89.48%)	⬇️
nncf/torch/model_creation.py	0.00% <0.00%> (-88.14%)	⬇️
nncf/torch/nncf_network.py	0.00% <0.00%> (-83.36%)	⬇️

... and 332 files with indirect coverage changes

Flag	Coverage Δ
COMMON	?
ONNX	?
OPENVINO	?
TENSORFLOW	29.86% <0.00%> (-0.02%)	⬇️
TORCH	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
common	76.35% <ø> (-17.42%)	⬇️
torch	0.01% <0.00%> (-90.46%)	⬇️
tensorflow	93.74% <ø> (+1.00%)	⬆️
onnx	0.00% <ø> (-87.06%)	⬇️
openvino	0.00% <ø> (-90.09%)	⬇️
ptq	15.19% <ø> (-68.93%)	⬇️

[alexsu52]

LGTM