Need non-AWT ways to get display count, width, height, pixel density

Created by: benfry

We need either 1) an alternative/native method to make these work, or 2) a per-Surface version of them.

The second option is still problematic since we don't know what PSurface will be used when settings() is called. So either we need to start passing that to the command line, or do something more clever, i.e. once size() or fullScreen() is called, use the renderer to create an object that can handle these device settings on a per-surface type basis.

For now, displayWidth and displayHeight will be 0 when --disable-awt is used.

Inizia tracciando come vengono gestiti displayWidth, displayHeight e la densità dei pixel quando viene usato --disable-awt, quindi esamina i percorsi size(), fullScreen(), renderer e PSurface menzionati nell’issue. Il lavoro è completato quando viene fornita un’implementazione non-AWT definita o un approccio praticabile per-Surface, invece di restituire 0 per le dimensioni del display.