message: Add a few more resref constants for IsValidResRef
diff: #include "nwnx"
  -const int NWNX_UTIL_RESREF_TYPE_AREA_GIT = 2012;
  +const int NWNX_UTIL_RESREF_TYPE_NSS = 2009;
  +const int NWNX_UTIL_RESREF_TYPE_NCS = 2010;
  +const int NWNX_UTIL_RESREF_TYPE_AREA_ARE = 2012;
  +const int NWNX_UTIL_RESREF_TYPE_TWODA = 2017;
  +const int NWNX_UTIL_RESREF_TYPE_AREA_GIT = 2023;
  const int NWNX_UTIL_RESREF_TYPE_ITEM = 2025;
  const int NWNX_UTIL_RESREF_TYPE_CREATURE = 2027;
  const int NWNX_UTIL_RESREF_TYPE_DIALOG = 2029;
  