anchor.diff:  pip install wofryshadow --no-deps
   
   git clone https://github.com/panosc-vinyl/shadowOui
  -cd vinyl/shadowOui
  +cd shadowOui
   pip install . --no-deps
   cd ..
   
  
positive.code: 
  
  REM 
  REM  install xraylib
  REM 
  
  conda install -c conda-forge xraylib=3.3.0
  
negative.code: 
  
  REM 
  REM  shadow  (to do: be sure that continue...)
  REM 
  
  git clone https://github.com/panosc-vinyl/shadow3
  