Add ISF config to run G4FastCalo in Athena MT (ATLASSIM-3958)
In order to run G4FastCalo in AthenaMT we need to define a kernel G4FastCaloMT in ISF_Config
Edited by Ahmed Hasib
In order to run G4FastCalo in AthenaMT we need to define a kernel G4FastCaloMT in ISF_Config