mace3D interface and docstring update

[dyang37]

This PR contains the updated interface of mace3D function. It looks like a lot of changes, but the majority of the changes are in the interface & docstring part of mace3D function.

Interface available here: mace.pdf

Specifically, here are the changes to the interface:

• Added arguments num_image_rows, num_image_cols, num_image_slices, image_slice_offset to align the mace interface to the recent interface change regarding ROR recon.
• Deleted argument ror_radius.
• Reordered arguments to align with the interface of recon function.

Tested with demo_mace3D.py and demo_mace3D_fast.py, and it worked fine.

Once this is done, we will make similar changes to mace4D. After that, we may start working on the interface change regarding delta_det_channel and delta_det_row.

[bommaritom]

Ok. It looks good to me.

[dyang37]

@cabouman A kind reminder on this PR. Once this is merged I'll make similar updates to mace4D interface. After that we may work on the interface change regarding delta_det_row and delta_det_channel (issue #107).