Merge pull request #48 from sidorsett/master Changes for AMD14H

Merge pull request #45 from NightFeather/master Detect cores actually present.

Fixes max FID being limited to 127. Restores missing test mode.

Display help text for nb vid on 11h 

Remove math.h not required anymore with #34 

Update README.md 

Update Readme for Zen 3 (19h) 

Some 16h CPU's have double the refclk speed #14 Closes #14

Displays correct P-state in use on 17h #27 

Updates CPU family supported printout.