room globals

Description

Variables
RGB_MAP *	AGS3::Globals::_rgb_table
int	AGS3::Globals::_new_room_flags = 0
int	AGS3::Globals::_gs_to_newroom = -1
int	AGS3::Globals::_bg_just_changed = 0
std::unique_ptr< RoomStatus >	AGS3::Globals::_room_statuses [MAX_ROOMS]