add copyright

add copyright

SCCS-vsn: games/trek/computer.c 4.3
SCCS-vsn: games/trek/dumpgame.c 4.3
SCCS-vsn: games/trek/getpar.h 5.2
SCCS-vsn: games/trek/getpar.c 4.4
SCCS-vsn: games/trek/kill.c 5.1
SCCS-vsn: games/trek/klmove.c 5.1
SCCS-vsn: games/trek/lose.c 5.1
SCCS-vsn: games/trek/main.c 5.1
SCCS-vsn: games/trek/phaser.c 5.1
SCCS-vsn: games/trek/play.c 5.1
SCCS-vsn: games/trek/setup.c 5.1
SCCS-vsn: games/trek/shield.c 5.1
SCCS-vsn: games/trek/srscan.c 5.1
SCCS-vsn: games/trek/systemname.c 5.1
SCCS-vsn: games/trek/torped.c 5.1
SCCS-vsn: games/trek/trek.h 5.1
SCCS-vsn: games/trek/visual.c 5.1
SCCS-vsn: games/trek/warp.c 5.1