message: Inline winapi.hpp in duckdb.h
diff: #pragma once
  -#include "duckdb/common/winapi.hpp"
  +#ifdef _WIN32
  +#ifdef DUCKDB_BUILD_LIBRARY
  +#define DUCKDB_API __declspec(dllexport)
  +#else
  +#define DUCKDB_API __declspec(dllimport)
  +#endif
  +#else
  +#define DUCKDB_API
  +#endif
  #include <stdbool.h>
  #include <stdint.h>
  