Add cyrillic support for font set
Add cyrillic support for font set

eigenein/readium,starburst1977/readium,saulgray/readium,skywalker0728/ghost_theme_readium_vivid_ver,PierrickGT/readium,skywalker0728/ghost_theme_readium_vivid_ver,crackerhead/readium,saulgray/readium,ladislas/readium,rdinnager/readium,rdinnager/readium,Instamotor-Labs/readium,eigenein/readium,crackerhead/readium,surajx/readium,cranesandcaff/ghost-theme