Speedup get_system_pkg_version() considering only installed packages
Speedup get_system_pkg_version() considering only installed packages

ptorsten/pfsense,pfsense/pfsense,NewEraCracker/pfsense,ptorsten/pfsense,NOYB/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense,dennypage/pfsense,phil-davis/pfsense,dennypage/pfsense,NewEraCracker/pfsense,pfsense/pfsense,pfsense/pfsense,dennypage/pfsense,NOYB/pfsense,pfsense/pfsense,phil-davis/pfsense,phil-davis/pfsense,NOYB/pfsense,ptorsten/pfsense,phil-davis/pfsense,dennypage/pfsense