Added resource file to UI file for button icon view.
Added resource file to UI file for button icon view.

fmilano/mitk,MITK/MITK,fmilano/mitk,fmilano/mitk,fmilano/mitk,fmilano/mitk,fmilano/mitk,MITK/MITK,MITK/MITK,MITK/MITK,MITK/MITK,fmilano/mitk,MITK/MITK