- use DetectorSelector in dumpdetector

 - changed method signature: LCDD::detectors(unsigned int includeFlag,  unsigned int excludeFlag=0 )
   - allows to select sets of detectors with some properties and explicitely excluding others
   - see dumpdetector for example usage

  - added LCDDImp::detectors(unsigned int typeFlag, bool bitsSet)
  -> allows to set detector properties (with DetType) for DetElements and
    get sets of detectors with certain properties, e.g.
    ( DetType::TRACKER | DetType::BARREL ) selects all barrel trackers

   a flag wordL DetType
 - added test_DetType.cc

avoid magic numbers :)

Moved LEFT_DETECTOR and PARTICLE_STOPPED

remove clearing of status (no longer necessary)

Fix typo in docstring
Geant4ParticleHandle: add printout of status bits in dump4

   - note: this does not yet seemt to be filled by DDG4!

 - removed random lines drawn in teveDisplay
 - dont't print DetectorData by default in dumpdetector

Add DDRec/src/plugins to folders documented by doxygen

Add groups for plugins and some example
Add an entry in the main "Modules" part of the doxygen website so they are easily found.
And sub groups for different plugin types.
See changes in the plugins for example. The documentation in these changes is not complete.

Fixes crash when unknown particles (e.g. PDG 94) exist in the MCHistory
Should only be a problem if the MCGenerator does not write proper information

   sub-structures (LayerLayout etc)

default value is 700 micron, as is the default in geant10.1 as far as I can tell
Complete production threshold table is printed in DEBUG verbosity level

   SIM.action.tracker = ("Geant4TrackerWeightedAction", {"HitPositionCombination" : 1 , "CollectSingleDeposits" :  False } )

This parameter is needed to not have single steps attempting to reach 1km (the
default, see
https://geant4.web.cern.ch/geant4/UserDocumentation/UsersGuides/ForApplicationDeveloper/html/ch04s03.html
). This can happen for low energy curlers in the beam pipe vacuum.

Add this also to DDG4 setup and to documentation example for field
get default value in case it is not set

The event number was changed by each input source resulting in wrong behaviour.
Now the input sources keep track of the event number themselves.  Ideally the
event number would be kept track of one level above, but then m_firstEvent is
not known. Likewise the output module is not aware of the number of skipped
events.

current event needs to be updated in the right place (at success)
reading the file needs to flag when the end had been reached
Issues discovered during testing

add currentEventNumber function to check which event one is at
Add small input files for the different event readers

Clearer status message in moveToEvent functions, change verbosity for particle printout in HepMC, add comment