message: Fix UWP build
diff: */
  #pragma once
  +#include "azure/core/platform.hpp"
  +
  #if defined(AZ_PLATFORM_WINDOWS)
  #if !defined(WIN32_LEAN_AND_MEAN)
  #define WIN32_LEAN_AND_MEAN
  #include <windows.h>
  +#if !defined(WINAPI_PARTITION_DESKTOP) \
  + || WINAPI_PARTITION_DESKTOP // See azure/core/platform.hpp for explanation.
  +
  namespace Azure { namespace Core { namespace Internal {
  /**
  @@ -56,3 +61,5 @@ namespace Azure { namespace Core { namespace Internal {
  }}} // namespace Azure::Core::Internal
  #endif
  +
  +#endif
  