- Implement NdrGetBuffer, NdrFreeBuffer, NdrConformantStringBufferSize
  and NdrConformantStringMarshall.
- Define the RPC_FC_C_CSTRING constant.
- Perhaps I don't want those MIDL_*_FORMAT_STRING structs, after
  all. Removed.
- Add RPC todo list.
- MIDL_STUB_MESSAGE.uFlags aren't.
- Comment out the NdrClientCall2 mock-up since that stuff is in the
  process of being implemented and might cause problems.