Ryuu ga Gotoku romanizations

BUR #18197 has been approved by @nonamethanks.

create alias kiryuu_kazuma -> kiryu_kazuma
create alias majima_gorou -> majima_goro
create alias doujima_daigo -> dojima_daigo
create alias nanba_yuu -> nanba_yu
create alias adachi_kouichi -> adachi_koichi
create alias gouda_ryuuji -> goda_ryuji

Converting to official romanizations.

Previous discussion: topic #20570

Given that it was a concern in the previous thread, Wikipedia and the Yakuza Wiki both follow the official romanizations:
https://yakuza.fandom.com/wiki/Category:Characters
https://en.wikipedia.org/wiki/List_of_Yakuza_characters

The bulk update request #18197 (forum #247258) has been approved by @nonamethanks.

ryuu ga gotoku should also be updated then - https://en.m.wikipedia.org/wiki/Ryu_Ga_Gotoku_Studio
The romanization inside the logo of the game's studio is Ryu, not Ryū.