terminal: Support both Alt and Control modifiers for regular keys
terminal: Support both Alt and Control modifiers for regular keys

krezovic/weston,xorgy/weston,Fantu/compositor-spice,giucam/weston,Tarnyko/weston-xdg_surface_present,sir-murray/weston,jonnylamb/weston,jonnylamb/weston,xorgy/weston,Tarnyko/weston-xdg_surface_present,kwm81/weston,udoprog/weston,Fantu/compositor-spice,giucam/weston,kwm81/weston,mchalupa/weston,Gnurou/weston,sir-murray/weston,krezovic/weston,udoprog/weston,eyolfson/weston,mchalupa/weston,eyolfson/weston,Gnurou/weston,Fantu/compositor-spice