geant4-parfullcms-toolfile: new toolfile for GEANT4 ParFullCMS

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
cmssw-tool-conf: add geant4-parfullcms-toolfile

Allows running GEANT4 10.00 ParFullCMS benchmark.

Instructions:

1. Create CMSSW environment
2. Copy example configuration files:

    cp -r $GEANT4_PARFULLCMS_CONFIG_DIR .
    cd ParFullCMS

3. By default thread count is set to cores count on machine, to
   change export G4FORCENUMBEROFTHREADS.

    export G4FORCENUMBEROFTHREADS=max
    or
    export G4FORCENUMBEROFTHREADS=<THREAD_NUMBER>

4. Run ParFullCMS, e.g.:

    ParFullCMS mt.g4

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
Merge pull request #372 from davidlt/run-parfullcms-in-cmssw

Allow running GEANT4 10.00 ParFullCMS in CMSSW environment