Geant4Output2LCIO: get LCIO input event parameters from dedicated event extension (if exists) and write them to LCIO output event

Geant4InputAction and Geant4EventReader: register input action into event reader enabling the event reader to access the Geant4 context

 - in Geant4InputHandling.cpp

DDG4::InputHandling pass also particles with 0 lifetime to geant, only ignore quarks, gluons and 'strings'

This is particularly useful for allowing the user to export targets
during install.

Added run and event number offsets to start counting runs and events from a different value than 0. Added float, int and string event parameters to class properties allowing a steering from outside

Fix logic for ignoring warnings in dictionary creation and exclude overlength strings warnings form generated targets