Comprehensive refactoring of the codebase to improve readability, maintainability, documentation, and performance. The changes encompass a wide range of modifications, including structural reorganization, code cleanup, accuracy, and addition of new notebooks.

• Code used for EAGE abstract.

• Release for EAGE conference abstract.

• bug fixes to the receiver point interpolation given spatial parallelism and fill values appearing in shot record.
• reduced memory usage in FWI
• fixes to PML in both 2d/3d

initial release