Add an option to select the fullscreen screen
In 3.0 it's possible to pick a screen for the DirectDraw module. When going fullscreen it goes to that screen. DirectDraw is gone in 4.0 and the last possibility to have this feature.
It has been discussed multiple times and I'm not sure there's a clean solution. But with the display device (not the decoder device) it might be possible to pick which display we're talking about.
The option is OS and maybe even display device specific so it could be handled in each module separately (the DXGI based modules can probably use the same one).
It is also be related to the window, since it's the one holding the display module and that's the receiver of vout_window_SetFullScreen()
which takes a string (unused for now). But the string might need to be the same that a display device would use as it may not be possible to reparent a display module to a different adapter output.
Ref #26844 on 3.0