wcap: Add COPYING for vpxenc derived wcap-decode tool
wcap: Add COPYING for vpxenc derived wcap-decode tool

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