Need a write_using that allows users to write other files to s3

[isichei]

Happy to take this on if it is looking at implementing the read_using.

Main reason for this need is the ability to write csvs without headers to S3. write.csv doesn't have this functionality.

https://stackoverflow.com/questions/19227243/write-a-data-frame-to-csv-file-without-column-header-in-r

[calumabarnett]

This might have been solved by #40, which implemented a function using write.table giving the option to write csvs without headers.