GitLab

* adding github action for coverage report

* removing github action

* report coverage in terminal

* restricting to files directly inside torch-harmonics

* adding exclusion list for coverage

* instricting pytest-cov to use coragerc

* instricting pytest-cov to use coragerc

* changing exclusion list in coveragerc

* Fixing the precomputation of the Psi matrix

* moving tests to a parent folder

* removing tqdm

* deleting deprecated distributed tests

* Moving distributed test

* adapting workfolow

* Added some more comments to make the code more understandable

* more detailed explanation for the derivation of the rotation angles

* added another comment

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Co-authored-by: Thorsten Kurth <tkurth@nvidia.com>

* Added gradient check to test suite
* reduced size of the unit test
* switched to parametrized for unittests