Lfun-Gruppe Licht

• add_own_light
• can_see
• cannot_see
• describe_current_room
• describe_room
• notify_extinguish
• notify_light
• query_daylight
• query_eye_level
• query_inner_light
• query_light
• query_light_description
• query_outer_light
• query_own_light
• query_room_description
• query_visible_in_the_dark
• set_eye_level
• set_own_light