Fix "qt examples missing important files"

* Fix "qt examples missing important files"
  - Move examples manifest files into the examples package.
  - Add breaks/replaces for moved files.
  (Closes: #933597)
* Move qhp .tags files into -dev package as they are needed
  at build time for qhp generation.
  Please see bug: #922707: please consider packaging doxygen
  .tags files with -dev package, not -doc