Clone 50 commits instead of 1 on appveyor, matching travis
Clone 50 commits instead of 1 on appveyor, matching travis

* This allows the git-commit script embedded in each vcxproj to run OK.

cgmb/renderdoc,etnlGD/renderdoc,googlestadia/renderdoc,Zorro666/renderdoc,etnlGD/renderdoc,baldurk/renderdoc,etnlGD/renderdoc,Zorro666/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,googlestadia/renderdoc,googlestadia/renderdoc,TurtleRockStudios/renderdoc_public,TurtleRockStudios/renderdoc_public,etnlGD/renderdoc,etnlGD/renderdoc,baldurk/renderdoc,TurtleRockStudios/renderdoc_public,michaelrgb/renderdoc,Zorro666/renderdoc,michaelrgb/renderdoc,googlestadia/renderdoc,cgmb/renderdoc,michaelrgb/renderdoc,cgmb/renderdoc,TurtleRockStudios/renderdoc_public,michaelrgb/renderdoc,Zorro666/renderdoc,etnlGD/renderdoc,TurtleRockStudios/renderdoc_public,cgmb/renderdoc,Zorro666/renderdoc,TurtleRockStudios/renderdoc_public,baldurk/renderdoc,googlestadia/renderdoc,cgmb/renderdoc,baldurk/renderdoc,baldurk/renderdoc,michaelrgb/renderdoc,googlestadia/renderdoc