Transfer screenshots package

[deadsoul44]

Screenshots package has not been maintained for 2 years. It could be great if it is forked and maintained by flutter community because it has the potential to be used by every flutter developer.

https://pub.dev/packages/screenshots

[martin-braun]

Flutter's integration tests allow to take screenshots: https://dev.to/mjablecnik/take-screenshot-during-flutter-integration-tests-435k

Although it still has problems on Android devices when it comes to multiple screenshots, I still looking forward to it.

We probably need a package to utilize it, so get it going for all device sizes using different AVDs / Simulators without any required interaction for full automation.