Report output on clean or successful scan

[tcostello-godaddy]

Feature Request

Need output to screen and or text file when scan results are clean.

Example:
scan run: 02-20-2020
scan result: 100% Clean. Success

or

'02/20/2020 - 100% Clean'

Is your feature request related to a problem? Please describe.

If scan is clear, command line returns nothing. Safe to assume the scan was clean....but would like CLI feedback.

Describe the solution you'd like

CLI returns when no errors/issues:

'date:time- 100% Clean'

Describe alternatives you've considered

Teachability, Documentation, Adoption, Migration Strategy

[tarkatronic]

I think this makes sense. By default, we can print out some kind of success message.
All clear. No secrets detected.
We can also add a -q/--quiet flag to suppress that ouput.

This also goes hand in hand with #11 and #37. I think we need generally just a revamp of our outputs.

[janerikcarlsen]

Taking this on together with #43