Added --output_format option (#333)
* Added --output option
--output option will help select the output files that will be generated.
Corrected the logic, which wrongly shows progress bar when verbose is set to False
* Changed output_files variable
* Changed back the tqdm verbose
* refactor output format handling
Co-authored-by: Jong Wook Kim <jongwook@openai.com>
Co-authored-by: Jong Wook Kim <jongwook@nyu.edu>
