message: some more DUCKDB_API for windows
diff: @@ -96,8 +96,8 @@ public:
  return private_data.get();
  }
  - static Allocator &DefaultAllocator();
  - static shared_ptr<Allocator> &DefaultAllocatorReference();
  + DUCKDB_API static Allocator &DefaultAllocator();
  + DUCKDB_API static shared_ptr<Allocator> &DefaultAllocatorReference();
  private:
  allocate_function_ptr_t allocate_function;
  