Possible typo in util.read_gnss_csv: `lots` variable (should be `lats`?)

[migitekubi3042]

Hi, and thanks for publishing VMOD.

This is my first time opening an issue at github, so sorry if I’m missing any conventions.

In vmod/util.py, function read_gnss_csv, I noticed:

lons = np.array(lons)
lots = np.array(lats)

lots doesn’t seem to be used afterwards, and when trans=True the code calls ll2utm(lons, lats) where lats remains a Python list.

So I suspect this might be a typo and should be:

lats = np.array(lats)

If I’m mistaken, I’m sorry — but I’d really appreciate it if you could take a look and let me know.