Revert "disable IPP by default"

This reverts commit 0cbe19bdf282f8b93b8460fbb1cd5df4b023dfef.
Rebase from 'upstream'
Added install rule for package.xml
install the package.xml to the opencv3 folder
make sure Java, VTK, Qt OpenGL are here for install
add VTK as a dependency
disable IPP by default
Revert "disable IPP by default"

This reverts commit 0cbe19bdf282f8b93b8460fbb1cd5df4b023dfef.
Revert "Revert "disable IPP by default""

This reverts commit 2be58d2138d8eced01af807fc610873893b96b0f.