feat: implement command queue with multi-frame buffering

D3D12 Core:
- Add d3d12_command class for command queue management
- Support Direct/Compute/Copy command queue types
- Implement multi-frame buffering (frame_buffer_count=3)
- Add begin_frame/end_frame rendering cycle
- Add NAME_D3D12_OBJECT_INDEXED macro

Platform Interface:
- Add render function pointer to platform_interface
- Implement render() in Renderer

Documentation:
- Add changelog for command queue implementation
- Update D3D12 Wiki with multi-frame buffering section
- Mark command queue task as completed

Engine/Graphics/Renderer.h

@@ -47,4 +47,10 @@ bool initialize(graphics_platform platform);
  */
 void shutdown();
 
+/**
+ * @brief 渲染调用接口
+ * @details 调用渲染函数指针，渲染当前渲染表面
+ */
+void render();
+
 }