mame 0.150新模拟支持游戏

configure to that screen. This removes the need to explicitly specify a screen in the configuration for a large chunk of drivers (though doing so never hurts). A new macro MCFG_VIDEO_SET_SCREEN is provided， though devices are encouraged to define their own that maps there so it is obvious which device is being targeted. The device_video_interface's validation function will error if an invalid screen is specified or if no screen is provided but there are multiple screens present. Updated all devices that currently had an m_screen in them to use the device_video_interface instead. This also has the nice benefit of flagging video-related devices for categorization purposes. It also means all these devices inherit the same screen-finding behaviors. For devices that had interfaces that specified a screen tag， those have been removed and all existing structs updated. Added an optional_device<screen_device> m_screen to the base driver_device. If you name your screen "screen" (as most drivers do)，