Add a fake appearance dictionary to Sig object.
Add a fake appearance dictionary to Sig object.

Change-Id: Ibd8f6232b0121de6951e27ec82851ea719a2ddc2

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core