Introduce first version of gmgeantino

gmgeantino is a geant4 based application that allows you to produce geantino maps for the geometry specified as input. It supports .db/.gdml/.dylib/.so geomtry formats and it writes out the geantino maps in a ROOT file. However, it does not depend on ROOT, cause it uses the G4AnalysisManager to create/fill/write 1D and 2D Profiles. The 1D and 2D profiles are filled during per Event or per Step. The creation of different profiles can be tunes with command line flags. In general XY,ZR,etaPhi RadiationLength/InteractionLength profiles can be created per DetectorVolume/Material/Element.