* Rename column_index to cell_index in KZG spec
* Fix table of contents
* Replace list(set()) with set()
* Change coset_evals to cell_indices in some places
* Remove punctuation in table description
* Remove "row" from comments & improve docstring
* Replace unique with deduplicated
* Recover cells and proofs & matrix clean up
* Fix table of contents
* Update reference tests generator
* Update test format
* Remove unused imports
* Fix some minor nits
* Rename MatrixEntry's proof to kzg_proof
* Move RowIndex & ColumnIndex to das-core