Add Lithuania to the country list of kweather. Add weather stations that are available in Lithuania:
- Vilnius (EYVI) as "Vilnius"
- Kaunas (EYKA) as "Kaunas"
- Siauliai Intl./Mil. (EYSA) as "Siauliai"
- Palanga Intl. (EYPA) as "Palanga"

Thanks to Modestas Vainius