added a hook for the context to register a facility
added a hook for the context to register a facility

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