Generate Official Squad list PDF

[achapin]

It would be great if the squad builder print options could include the official FFG squad registration sheet: https://images-cdn.fantasyflightgames.com/filer_public/98/61/98615519-2c30-48c0-838d-587567f07045/xwing-squad-sheet-test.pdf

That way, users could print out their lists in this officially-required format ahead of time.