Add ability to configure from dbus

This allows configuration of PID control from dbus using
entity manager. Sample configuration will be pushed to
entity-manager repo shortly.

Tested-by: Used yaml configuration and dbus / entity-manager
           based configuration and pid seemed to work the same.
	   Verified printout of configuration matched generated
	   cpp files.

Change-Id: Ia7b016e53262791ffcccdb9b21c1ccddae2926bc
Signed-off-by: James Feist <james.feist@linux.intel.com>
10 files changed