santactl fileinfo updates (#61)
santactl fileinfo updates (#61)

* Added --json output option. Added --key output option.
* Added multi-file processing
* Added threading
* \r to cleanup during really quick runs
tburgin/santa,tburgin/santa,google/santa,tburgin/santa,google/santa,russellhancox/santa,russellhancox/santa,google/santa,russellhancox/santa