nx: - allow copy of objects with required arguments - use ::nsf::object::alloc in "copy" method - don't depend on method "trace", use directdispatch instead - remove method "-noinit" (nsf::object::alloc makes it obsolete) - extend regression test
nsf.c: - factored out ParameterMethodForwardDispatch() to call a parameter method defined as a forwarder the smae way from "configure" and "cget" - extended regression test