feat(data): make info and language service asynchronous

docs: add missing nosfile documentation

feat(data): return correct message with file not found in archive

feat(data): add .nos files parsing support

feat(data): add support for retrieving language encodings

feat(data): allow filling translatable strings with translated string

fix(data): change czech language to correct string

feat(data): add translatable string

feat(data): add correct information into infos

feat(data): add .NOS file readers

feat(data): add skeleton for NosTale data