LoadConfig load config files to *conf.Config, it will: - resolve folder to files - try to read stdin if no file specified.

LoadConfigToMap load config files to map, it will: - resolve folder to files - try to read stdin if no file specified.

ReadDir finds files according to extensions in the dir.

ReadDirRecursively finds files according to extensions in the dir recursively.

ResolveFolderToFiles expands folder path (if any and it exists) to file paths.