Galactose

Summary:

1. Library
   - Removed NO_PID_API compile time option
   - Added OS interface to support L3/L2 CAT & CDP
   - Updated support for CMT per PID
2. PQoS Utility
   - Added pqos-os & pqos-msr wrapper scripts
   - Added option to select OS or MSR interface
3. rdtset Utility
   - Added option to select OS or MSR interface
4. Examples
   - Support for new OS/MSR interface added to CMT/MBM examples