Added OpenGL library to CubeView project file. git-svn-id: file:///fltk/svn/fltk/trunk@334 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
git-svn-id: file:///fltk/svn/fltk/trunk@333 ea41ed52-d2ee-0310-a9c1-e6b18d33e121