[opwig-lua] Got rid of ModuleWrap::open
[opwig-lua] ModuleWrap::children_ is now private.
[opwig-lua] ModuleWrap::parent_ is now private
[opwig-lua] WrapperState does not deal with generating code.
[opwig-lua] Middle code handled by codes.cxx
[opwig-lua] Generating module info struct type.
[opwig-lua] Generated ModuleInfo type: fixed parent initialization