Removed all old code from lib/pf/services.pm
Refactored service_list & service_ctl in terms of pf::services::manager
moved function getServiceManager from bin/pfcmd.pl to pf::services::get_service_manager

Removed all code from bin/pfcmd.pl
Refactor getServiceManager to pf::services::get_service_manager
added checkup before starting services