fontconfig: consider fullname for matching fonts
fontconfig: consider fullname for matching fonts

Additionally match fonts via the fullname (or name for humans) and
prefer these matches. Previously, libass matched against the family name
only and this name can be completely different from the fullname (which
is used by VSFilter!).

sanyaade-g2g-repos/libass,ShiftMediaProject/libass,richardpl/libass,torque/libass,blinkseb/libass,torque/libass,xbmc/libass,rhlee/libass,xbmc/libass,vault/libass,tgoyne/libass,MrSmile/libass,Akemi/libass,richardpl/libass,sanyaade-g2g-repos/libass,torque/libass,stps/libass,mwgoldsmith/libass,libass/libass,vault/libass,sanyaade-g2g-repos/libass,libass/libass,stps/libass,richardpl/libass,Distrotech/libass,blinkseb/libass,mwgoldsmith/libass,tgoyne/libass,MrSmile/libass,astiob/libass,astiob/libass,asimonov-im/libass,Distrotech/libass,tgoyne/libass,Akemi/libass,stps/libass,grigorig/libass,Distrotech/libass,asimonov-im/libass,pigoz/libass-ct,rhlee/libass,grigorig/libass,blinkseb/libass,mwgoldsmith/libass,Akemi/libass,pigoz/libass-ct,rhlee/libass,ShiftMediaProject/libass,pigoz/libass-ct