Support custom creator in class registry
Support custom creator in class registry

qqquinta/nimx,rrenderr/nimx,yglukhov/nimx,bogdan-voevoda/nimx,rrenderr/nimx,yglukhov/nimx,qqquinta/nimx,bogdan-voevoda/nimx,bogdan-voevoda/nimx,yglukhov/nimx,rrenderr/nimx,qqquinta/nimx