Contribute back our version of the flag of Lithuania

[Wyatt OʼDay]

See commit e769126

Update flag of Lithuania with the correct color as specified in their government docs:

https://web.archive.org/web/20110605033630/http://www.lrv.lt/bylos/herbas-logo/LR_veliava_ir_herbas.pdf

PANTONE 1235 C, https://www.pantone.com/color-finder/1235-C
Hex #FFB81C

PANTONE 349 C, https://www.pantone.com/color-finder/349-C
Hex #046A38

PANTONE 180 C, https://www.pantone.com/color-finder/180-C
Hex #BE3A34

Contribute these changes back here: https://commons.wikimedia.org/wiki/File:Flag_of_Lithuania.svg