message: Disable crash reporting for unofficial renderdoccmd builds
  This follows the lead of crash_handler.h in renderdoc proper.
diff: @@ -62,7 +62,7 @@ static std::wstring conv(const std::string &str)
  HINSTANCE hInstance = NULL;
  -#if defined(RELEASE)
  +#if defined(RELEASE) && RENDERDOC_OFFICIAL_BUILD
  #define CRASH_HANDLER 1
  #else
  #define CRASH_HANDLER 0
  