Added getNumFacilities() function to InstModel interface for public reporting of current facilities
Added getNumFacilities() function to InstModel interface for public reporting of current facilities

mbmcgarry/cyclus,mbmcgarry/cyclus,Baaaaam/cyclus,gidden/cyclus,Baaaaam/cyclus,Baaaaam/cyclus,hodger/cyclus,hodger/cyclus,gidden/cyclus,gidden/cyclus,rwcarlsen/cyclus,hodger/cyclus,rwcarlsen/cyclus,mbmcgarry/cyclus,rwcarlsen/cyclus,mbmcgarry/cyclus,hodger/cyclus,gidden/cyclus,hodger/cyclus,rwcarlsen/cyclus