Migrate helper functions from managerdefault to common

This patch moves from manager to common:

-parse helper functions of the policy configuration file
-collection helper function on
	-output / input descriptors
	-DeviceDescriptor
	-AudioPatch / Audio Port
	-IO Profile
	-HwModule

Change-Id: If45e53418db75af1af198f43c4ef27884499055f
Signed-off-by: François Gaffie <francois.gaffie@intel.com>