Add license header to goncurses.c
Add license header to goncurses.c

cha87de/goncurses,bluzye/goncurses,nodar-chkuaselidze/goncurses,nodar-chkuaselidze/goncurses,snuk182/goncurses,cha87de/goncurses,cha87de/goncurses,snuk182/goncurses,aquarat/goncurses,aquarat/goncurses,bluzye/goncurses