[Geant4] Add BFC options to load geant4 libraries

... collapse some of these options together

... remove options which are not likely to be used (we can always add them back if needed).

StRoot/StBFChain/BigFullChain.h

@@ -1401,6 +1401,18 @@ Bfc_st BFC[] = { // standard chains
   {"hijing1.383" ,"","","stargen", "", "Hijing1_383.so",        "Load Hijing  1.383 generator", false },
   {"kinematics"  ,"","","stargen", "", "Kinematics.so",         "Load STAR Particle Gun", false },
   {"genreader"   ,"","","stargen", "", "StarGenEventReader.so", "Load STAR Gen Event Reader", false },
+
+
+  {"------------","-----------","-----------","------------------------------------------","","","",kFALSE},
+  {"GEANT4 Libs ","-----------","-----------","------------------------------------------","","","",kFALSE},
+  {"------------","-----------","-----------","------------------------------------------","","","",kFALSE},
+
+  {"g4interfaces","", "", "",                     "", "libG4clhep.so,libG4global.so,libG4intercoms.so,libG4interfaces.so,libG4modeling.so,libG4vis_management.so","Load G4 libs",false},
+  {"g4physics",   "", "", "",                     "", "libG4materials.so,libG4graphics_reps.so,libG4geometry.so,libG4particles.so,libG4track.so,libG4zlib.so,libG4digits_hits.so,libG4processes.so,libG4tracking.so,libG4event.so,libG4run.so,libG4physicslists.so", "Load G4",false},
+  {"g4geant3",    "", "", "",                     "", "libG3toG4.so", "Load g3 to g4 support", false },
+  {"geant4",      "", "", "g4physics,g4interfaces","","","Load G4 libs", false},
+
+
   {"------------","-----------","-----------","------------------------------------------","","","",kFALSE},
   {"I/O Makers  ","-----------","-----------","------------------------------------------","","","",kFALSE},
   {"------------","-----------","-----------","------------------------------------------","","","",kFALSE},
@@ -1410,7 +1422,7 @@ Bfc_st BFC[] = { // standard chains
    ,                                "Pythia6_4_26,bpythia","Load Pythia in starsim, set pp 510 GeV",kFALSE},
   {"Wenu"        ,"" ,"","pythia","", ""                 ,"set pp 510 GeV -> W+/- -> e+/- nu/nubar",kFALSE},
   {"hijing"      ,"geant" ,"","-gstar,-fzin,-ntin,-geant,geantL","St_geant_Maker"
-   ,"StarGeneratorUtil,StarGeneratorEvent,StarGeneratorBase,Hijing1_383"
+   ,"StarGeneratorUtil,StarGeneratorEvent,StarGeneratorBase,Hijing1_383"  
    ,                                                      "Load Hijing in starsim, set AuAu200 GeV",kFALSE},
   {"tdaq"        ,"","",""                                               ,"","",STAR_CHAIN_OBSOLETE,kFALSE},
   {"miniDAQ"     ,"","",""                                               ,"","",STAR_CHAIN_OBSOLETE,kFALSE},