Tool 221: Convert a base64 encoded file to a binary file
  
  Description:
   
  This tool converts a base64 encoded file to the original file.
   
  Usage:
    netwox 221 -i file -o file
  Parameters:
 
  | parameter | description | example | 
 | -i|--src-file file | source filename | srcfile.txt | 
| -o|--dst-file file | destination filename | dstfile.txt | 
  Examples:
    netwox 221 -i "srcfile.txt" -o "dstfile.txt"
    netwox 221 --src-file "srcfile.txt" --dst-file "dstfile.txt"