Add NMEA GGA GPS Quality indicator as data series for SVLOG and NMEA files

[adobrovolskiy-ugcs]

Extract it from GGA sentences as numeric value to have possibility to display it in plot area

0: Fix not valid
1: GPS fix
2: Differential GPS fix (DGNSS), SBAS, OmniSTAR VBS, Beacon, RTX in GVBS mode
3: Not applicable
4: RTK Fixed, xFill
5: RTK Float, OmniSTAR XP/HP, Location RTK, RTX
6: INS Dead reckoning