Make minor changes in documentation
Add NDEBUG flag
Add NDEBUG flag in ridgelet_convergence_driver
Move ridgelet coefficient norm and dot product into RidgeletCellArray for performance
Implement (inverse_)fourier_ridgelet_transform
Change @RidgeletCellArray/dot.m to work with sparse matrices
Implement @FourierOperatorAdaptorFrc
Change ridgelet_convergence to Fourier ridgelet transform
Split ridgelet_convergence into normal and fourier_ridgelet_convergence
Minor fix in documentation of fourier_ridgelet_convergence
Change fourier_convergence to a function
Change ridgelet_convergence_driver to ridgelet_convergence_example