Ahaggar: rename the 'progname' parameter to 'prefix'

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Ahaggar: add the nodes-utils.h header file

This file contains the declaration of different utilities functions
to convert and return GCC objects as strings.

All these functions use a static buffer so make sure to copy the data
befor the next call.

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Ahaggar: add the nodes-utils.c file

This file contains the definition of different utilities functions
to convert and return GCC objects as strings.

All these functions use a static buffer so make sure to copy the data
befor the next call.

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>