Ahaggar: move nr_process_files() ti Input Class

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Ahaggar: add the parser.py module

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Ahaggar: add the FncallsParser Class

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