'arr' argument not used in get_bb_points

[sweetbeet]

Hi! I believe there might be a an unnecessary argument in get_bb_points as 'arr' is not being used within the function:
https://github.com/duhaime/lloyd/blob/a19557cc6282a8438be64e24af2be4375c3b1d32/lloyd/lloyd.py#L74C27-L74C30

[duhaime]

Hello! Thanks for your notes, these are great.

Yes, you're quite right, don't need that arg. If you send a merge request to remove it, I'll happily accept it!