Programfiler till gruppövning 3 (Hus med hissar)

BELL.CPP
BELL .H
BOOL.H
BUILDING.CPP
BUILDING.H
BUTTON.CPP
BUTTON.H
DOOR.CPP
DOOR.H
ELEVATOR.CPP
ELEVATOR.H
FLOOR.CPP
FLOOR.H
GRUPPOVN.CPP
LIGHT.CPP
LIGHT.H
PERSON.CPP
PERSON.H