Added
- Imported basic MPI functionality from MRChem
- Haar basis MW filters (only functions, no operators)
- Possibility for anisotropic MWOperator
- CartesianConvolution operator (e.g. xy/r^3)
Fixed
- Reintroduces operator build_prec needed by VAMPyR
- Bug in getQuadraturePoints (row/col mixup)