add new parser based on Utf8StreamReader for comparison

[DrJakiellSWO]

hello,
can you in your benchmarks add new parser based on Utf8StreamReader ?

[joelverhagen]

Feel free to open a PR and I will rerun the benchmarks!

[ksysiekj]

@joelverhagen cant be done as Utf8StreamReader supports only async read. Can't use it as the ICsvReader.GetRecords method is synch one

[joelverhagen]

Feel free to enhance the interface for async and add an associated async benchmark. I think I just had a sync method until now since all of the CSV libraries so far have had a sync path.