Add Apple install rule for documentation pdf.
Add Apple install rule for documentation pdf.

Kitware/VeloView,Kitware/VeloView,Kitware/VeloView,mathturtle/tomviz-superbuild,OpenChemistry/tomviz-superbuild,frizaro/Veloview,cjh1/tomviz-superbuild,frizaro/Veloview,cjh1/tomviz-superbuild,frizaro/Veloview,mathturtle/tomviz-superbuild,mathstuf/tomviz-superbuild,frizaro/Veloview,Kitware/VeloView,Kitware/VeloView,mathstuf/tomviz-superbuild,OpenChemistry/tomviz-superbuild