Lightning integration

[szmazurek]

Fixes #

Proposed Changes

• moving gandlf logic to Lightning framework

Checklist

• CONTRIBUTING guide has been followed.
• PR is based on the current GaNDLF master .
• Non-breaking change (does not break existing functionality): provide as many details as possible for any breaking change.
• Function/class source code documentation added/updated (ensure typing is used to provide type hints, including and not limited to using Optional if a variable has a pre-defined value).
• Code has been blacked for style consistency and linting.
• If applicable, version information has been updated in GANDLF/version.py.
• If adding a git submodule, add to list of exceptions for black styling in pyproject.toml file.
• Usage documentation has been updated, if appropriate.
• Tests added or modified to cover the changes; if coverage is reduced, please give explanation.
• If customized dependency installation is required (i.e., a separate pip install step is needed for PR to be functional), please ensure it is reflected in all the files that control the CI, namely: python-test.yml, and all docker files [1,2,3].
• The logging library is being used and no print statements are left.

[github-actions]

MLCommons CLA bot All contributors have signed the MLCommons CLA ✍️ ✅

[codecov]

Codecov Report

Attention: Patch coverage is 50.57895% with 939 lines in your changes missing coverage. Please review.

Project coverage is 35.97%. Comparing base (ed38f96) to head (e9b47cc).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
testing/test_lightning_components.py	23.02%	361 Missing ⚠️
GANDLF/models/lightning_module.py	65.91%	289 Missing ⚠️
GANDLF/utils/imaging.py	22.53%	55 Missing ⚠️
...DLF/privacy/opacus/opacus_anonymization_manager.py	33.33%	54 Missing ⚠️
testing/test_full.py	10.41%	43 Missing ⚠️
GANDLF/inference_manager.py	14.81%	23 Missing ⚠️
GANDLF/metrics/metric_calculators.py	67.14%	23 Missing ⚠️
GANDLF/training_manager.py	58.92%	23 Missing ⚠️
GANDLF/losses/loss_calculators.py	57.69%	22 Missing ⚠️
GANDLF/data/lightning_datamodule.py	74.07%	14 Missing ⚠️
... and 11 more

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #991       +/-   ##
===========================================
- Coverage   92.01%   35.97%   -56.05%     
===========================================
  Files         171      178        +7     
  Lines       10035    11843     +1808     
===========================================
- Hits         9234     4260     -4974     
- Misses        801     7583     +6782     

Flag	Coverage Δ
unittests	35.97% <50.57%> (-56.05%)	⬇️

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