ReadLineAsync/WriteLineAsync are missing

[NN---]

There is WriteLine but no WriteLineAsync: https://docs.microsoft.com/en-us/dotnet/api/system.io.streamwriter.writelineasync?view=netframework-4.7.2 As well ReadLineAsync https://docs.microsoft.com/en-us/dotnet/api/system.io.textreader.readlineasync?view=netframework-4.7.2#System_IO_TextReader_ReadLineAsync

[theraot]

I have been looking into this, I do not think it can be properly done with extension methods. So, I think it will be StreamReaderEx and StreamWriterEx.