This adds functionality to help users setup multidisplay windows
environments. Running this on a multidisplay box gives output similar
to the following:

> paraview.exe --print-monitors
Device: "\\.\DISPLAY1" Geometry: 1080x1920+0+0 (primary)
Device: "\\.\DISPLAY2" Geometry: 1920x1080+1080+0

Change-Id: I938d41fba780c7ccbfd3bfaed8a72733150f984a