Set the format of standard and json binary output 

Output format for binary data (octal, hex, or base64) can be set using the binary_output variable, this can be done for standard output as well as JSON output (jsonbinary_output). 

- Defaults are located in the configuration-defaults.properties. 
- Added IT test to evaluate functionality of standard output. 
- Added 'properties' functionality to RestServiceFilesIT to evaluate JSON output

Example usage: 
SET binary_output TO base64;