Added modname_pack/unpack routines; also SizeOnly optional arguments for pack routines so that allocated buffers are returned (from which size can be determined) but no actual copying takes place.
Added modname_pack/unpack routines; also SizeOnly optional arguments for pack routines so that allocated buffers are returned (from which size can be determined) but no actual copying takes place.

git-svn-id: 649c575fa8097eb75d0d6ae627d01991ce1b269f@50 10acb478-4768-415a-8850-bacdb5912d4d

OpenFAST/OpenFAST,OpenFAST/OpenFAST,OpenFAST/OpenFAST