Feature Request: Multiple Monitors

[rDarge]

It would be nice to be able to have VGT open on one monitor and the manga open on another monitor - currently VGT only supports one screen (the primary screen) for screenshotting.

Either specifying a particular monitor to focus on or, preferably, creating a capture window on each window when the capture shortcut is pressed (so that no additional configuration is necessary) would be a great addition to the features VGT currently offers.

[rDarge]

I've got a version of this working on my fork in this commit: rDarge@1d27f1f

It will create a capture window maximized on each monitor the system detects, and closes each out when cancelled or when a screenshot is taken.