Improved output of NAV 2/3 parameters, especially ionospheric parameters.
Corrected NAV test file spacing issues
Use Pytest ≥ 3.9 `tmp_path` fixture.
1.6.7.3
* BUGFIX https://github.com/scivision/georinex/issues/30 for irregular NAV3 data for Galileo * functionalize irregular NAV3 data handling/checking * plot galileo nav
1.6.7.2
Fixes https://github.com/scivision/georinex/issues/29 mangled times in header and data. Dedupe time conversion for header
1.6.7.1
* allow NAV2 files to intermittently be missing the final field (e.g. GPS FitIntvl) * allow reading .nc files as well as RINEX for location plotting