Refactoring iomanager to use statically allocated port groups instead of a fixed TX group set, and a variable number of groups according to the number of LSIs. Removing old processingmanager
Addding IO_POLLING_STRATEGY configurable knob. Disabling for the moment via config.cc
typos
Honour return value of iomanager::init() and abort hal_driver_init()
Converting iomanager group mgmt routines in protected methods
fix tests
Merge branch 'devel0.6/gnu_linux_iomanager_refactor' into devel-0.6

Conflicts:
	src/xdpd/drivers/gnu_linux/src/pipeline-imp/platform_hooks_of1x.cc