Ahaggar: add the regexp_match_call() function

This function will be used to match all the function call string

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Ahaggar: add the regexp_match_cargs() function

This function will be used to match arguments in the form "(*)"

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Ahaggar: complete the process_fncall() function logic

This function will iterate over pattern_match array and match each
c_args and c_all against the function call.
On success it will pass the corresponding results to the output
function.

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