make the function gridded_inverse_fourier _transform_stack more user friendly

[mathrip]

To make the examples more user-friendly we want a function gridded_inverse_fourier_transform that takes as input only the stacks and return the gridded solution.

Currently, in non_cartesian_reconstruction_stack_3D.py we have :

kspace_plane_loc, z_sample_loc, sort_pos, idx_mask_z = get_stacks_fourier(
    kspace_loc,
    image.shape)
grid_soln = gridded_inverse_fourier_transform_stack(
    kspace_data_sorted=kspace_obs[sort_pos],
    kspace_plane_loc=kspace_plane_loc,
    idx_mask_z=idx_mask_z,
    grid=tuple(grid),
    shape=image.shape,
    method='linear')

We want to merge get_stack_fourier with gridded_inverse_fourier_transform_stack to have a new function.

[mathrip]

I think we can close this issue because it do not make sense anymore as we already need to change the function for get_stacks_fourier and another issue is open about that