List files with Data (options) and return IAsyncEnumerable

[ontorder]

Since I have to list eventually big ftp directories it would be great if

• it was possible to pass arugments like -t to the ftp command without having to call SendCommandAsync (maybe just an enum for sorting would be nice)
• it was possible to use the IAsyncEnumerable paradigm (in ListFiles) so that the parsing would be done while downloading data, and so it could be interrupted without having to download everything

Thanks

[ontorder]

well, did it in my fork