add Hww and Hgg paths to be monitored in the Higgs HLT validation

Update of the list of the paths monitored by the HLT Higgs validation code to monitor the double leptons and the double photons in the template menu.
For now the 2012 paths are not removed from the list, to allow the code to work also on the 2012 frozen menu.

The output can be found here: 
`/afs/cern.ch/user/h/hbrun/public/testForHiggsDQM/dileptonsPaths.root` (produced with a TTbar to leptons Relval)
 `/afs/cern.ch/user/h/hbrun/public/testForHiggsDQM/HggPaths.root` (produced with a Hgg relval)
The histograms can be found in the following directory /DQMData/Run/HLT/Run summary/Higgs/