[QA CALLFORREV​IEW] [testuno]C​heck paper format in SW via UNO API

[Xiao Ting Xiao]

Hi all,

One patch for UNO automation test script has been submitted with *Bug
120784,
https://issues.apache.org/ooo/show_bug.cgi?id=120784

This patch include:
paper's width, height
paper's orientation
paper's margin
paper's background

Please help review.